stasvinokur/cve-and-cwe-dataset-1999-2025 huggingface dataset:
CVE-2017-18175 (severity: MEDIUM, weakness: CWE-79)
Progress Sitefinity 9.1 has XSS via the Content Management Template Configuration (aka Templateconfiguration), as demonstrated by the src attribute of an IMG element. This is fixed in 10.1.
CVE-2017-18176 (severity: MEDIUM, weakness: CWE-79)
Progress Sitefinity 9.1 has XSS via file upload, because JavaScript code in an HTML file has the same origin as the application's own code. This is fixed in 10.1.
CVE-2017-18177 (severity: MEDIUM, weakness: CWE-79)
Progress Sitefinity 9.1 has XSS via the Last name, First name, and About fields on the New User Creation Page. This is fixed in 10.1.
CVE-2017-18178 (severity: MEDIUM, weakness: CWE-601)
Authenticate/SWT in Progress Sitefinity 9.1 has an open redirect issue in which an authentication token is sent to the redirection target, if the target is specified using a certain %40 syntax. This is fixed in 10.1.
CVE-2017-18179 (severity: HIGH, weakness: CWE-287)
Progress Sitefinity 9.1 uses wrap_access_token as a non-expiring authentication token that remains valid after a password change or a session termination. Also, it is transmitted as a GET parameter. This is fixed in 10.1.
CVE-2017-18183 (severity: MEDIUM, weakness: CWE-835)
An issue was discovered in QPDF before 7.0.0. There is an infinite loop in the QPDFWriter::enqueueObject() function in libqpdf/QPDFWriter.cc.
CVE-2017-18184 (severity: MEDIUM, weakness: CWE-125)
An issue was discovered in QPDF before 7.0.0. There is a stack-based out-of-bounds read in the function iterate_rc4 in QPDF_encryption.cc.
CVE-2017-18185 (severity: MEDIUM, weakness: CWE-125)
An issue was discovered in QPDF before 7.0.0. There is a large heap-based out-of-bounds read in the Pl_Buffer::write function in Pl_Buffer.cc. It is caused by an integer overflow in the PNG filter.
CVE-2017-18186 (severity: MEDIUM, weakness: CWE-835)
An issue was discovered in QPDF before 7.0.0. There is an infinite loop due to looping xref tables in QPDF.cc.
CVE-2017-18187 (severity: CRITICAL, weakness: CWE-190)
In ARM mbed TLS before 2.7.0, there is a bounds-check bypass through an integer overflow in PSK identity parsing in the ssl_parse_client_psk_identity() function in library/ssl_srv.c.
CVE-2017-18188 (severity: MEDIUM, weakness: CWE-59)
OpenRC opentmpfiles through 0.1.3, when the fs.protected_hardlinks sysctl is turned off, allows local users to obtain ownership of arbitrary files by creating a hard link inside a directory on which "chown -R" will be run.
CVE-2017-18189 (severity: HIGH, weakness: CWE-476)
In the startread function in xa.c in Sound eXchange (SoX) through 14.4.2, a corrupt header specifying zero channels triggers an infinite loop with a resultant NULL pointer dereference, which may allow a remote attacker to cause a denial-of-service.
CVE-2017-18190 (severity: HIGH, weakness: CWE-290)
A localhost.localdomain whitelist entry in valid_host() in scheduler/client.c in CUPS before 2.2.2 allows remote attackers to execute arbitrary IPP commands by sending POST requests to the CUPS daemon in conjunction with DNS rebinding. The localhost.localdomain name is often resolved via a DNS server (neither the OS nor the web browser is responsible for ensuring that localhost.localdomain is 127.0.0.1).
CVE-2017-18191 (severity: HIGH, weakness: NVD-CWE-Other)
An issue was discovered in OpenStack Nova 15.x through 15.1.0 and 16.x through 16.1.1. By detaching and reattaching an encrypted volume, an attacker may access the underlying raw volume and corrupt the LUKS header, resulting in a denial of service attack on the compute host. (The same code error also results in data loss, but that is not a vulnerability because the user loses their own data.) All Nova setups supporting encrypted volumes are affected.
CVE-2017-18192 (severity: HIGH, weakness: CWE-200)
smart/calculator/gallerylock/CalculatorActivity.java in the "Photo,Video Locker-Calculator" application through 18 for Android allows attackers to access files via the backdoor 17621762 PIN.
CVE-2017-18193 (severity: MEDIUM, weakness: CWE-119)
fs/f2fs/extent_cache.c in the Linux kernel before 4.13 mishandles extent trees, which allows local users to cause a denial of service (BUG) via an application with multiple threads.
CVE-2017-18194 (severity: CRITICAL, weakness: CWE-89)
SQL injection vulnerability in users/signup.php in the "signup" component in HamayeshNegar CMS allows a remote attacker to execute arbitrary SQL commands via the "utype" parameter.
CVE-2017-18195 (severity: MEDIUM, weakness: NVD-CWE-Other)
An issue was discovered in tools/conversations/view_ajax.php in Concrete5 before 8.3.0. An unauthenticated user can enumerate comments from all blog posts by POSTing requests to /index.php/tools/required/conversations/view_ajax with incremental 'cnvID' integers.
CVE-2017-18196 (severity: LOW, weakness: CWE-22)
Leptonica 1.74.4 constructs unintended pathnames (containing duplicated path components) when operating on files in /tmp subdirectories, which might allow local users to bypass intended file restrictions by leveraging access to a directory located deeper within the /tmp directory tree, as demonstrated by /tmp/ANY/PATH/ANY/PATH/input.tif.
CVE-2017-18197 (severity: CRITICAL, weakness: CWE-611)
In mxGraphViewImageReader.java in mxGraph before 3.7.6, the SAXParserFactory instance in convert() is missing flags to prevent XML External Entity (XXE) attacks, as demonstrated by /ServerView.
CVE-2017-18198 (severity: HIGH, weakness: CWE-125)
print_iso9660_recurse in iso-info.c in GNU libcdio before 1.0.0 allows remote attackers to cause a denial of service (heap-based buffer over-read) or possibly have unspecified other impact via a crafted iso file.
CVE-2017-18199 (severity: MEDIUM, weakness: CWE-476)
realloc_symlink in rock.c in GNU libcdio before 1.0.0 allows remote attackers to cause a denial of service (NULL Pointer Dereference) via a crafted iso file.
CVE-2017-18200 (severity: MEDIUM, weakness: CWE-20)
The f2fs implementation in the Linux kernel before 4.14 mishandles reference counts associated with f2fs_wait_discard_bios calls, which allows local users to cause a denial of service (BUG), as demonstrated by fstrim.
CVE-2017-18201 (severity: CRITICAL, weakness: CWE-415)
An issue was discovered in GNU libcdio before 2.0.0. There is a double free in get_cdtext_generic() in lib/driver/_cdio_generic.c.
CVE-2017-18202 (severity: HIGH, weakness: CWE-416)
The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.
CVE-2017-18203 (severity: MEDIUM, weakness: CWE-362)
The dm_get_from_kobject function in drivers/md/dm.c in the Linux kernel before 4.14.3 allow local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices.
CVE-2017-18204 (severity: MEDIUM, weakness: NVD-CWE-Other)
The ocfs2_setattr function in fs/ocfs2/file.c in the Linux kernel before 4.14.2 allows local users to cause a denial of service (deadlock) via DIO requests.
CVE-2017-18205 (severity: HIGH, weakness: CWE-476)
In builtin.c in zsh before 5.4, when sh compatibility mode is used, there is a NULL pointer dereference during processing of the cd command with no argument if HOME is not set.
CVE-2017-18206 (severity: CRITICAL, weakness: CWE-119)
In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.
CVE-2017-18207 (severity: MEDIUM, weakness: CWE-369)
The Wave_read._read_fmt_chunk function in Lib/wave.py in Python through 3.6.4 does not ensure a nonzero channel value, which allows attackers to cause a denial of service (divide-by-zero and exception) via a crafted wav format audio file. NOTE: the vendor disputes this issue because Python applications "need to be prepared to handle a wide variety of exceptions.
CVE-2017-18208 (severity: MEDIUM, weakness: CWE-835)
The madvise_willneed function in mm/madvise.c in the Linux kernel before 4.14.4 allows local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping.
CVE-2017-18209 (severity: HIGH, weakness: CWE-476)
In the GetOpenCLCachedFilesDirectory function in magick/opencl.c in ImageMagick 7.0.7, a NULL pointer dereference vulnerability occurs because a memory allocation result is not checked, related to GetOpenCLCacheDirectory.
CVE-2017-18210 (severity: CRITICAL, weakness: CWE-476)
In ImageMagick 7.0.7, a NULL pointer dereference vulnerability was found in the function BenchmarkOpenCLDevices in MagickCore/opencl.c because a memory allocation result is not checked.
CVE-2017-18211 (severity: CRITICAL, weakness: CWE-476)
In ImageMagick 7.0.7, a NULL pointer dereference vulnerability was found in the function saveBinaryCLProgram in magick/opencl.c because a program-lookup result is not checked, related to CacheOpenCLKernel.
CVE-2017-18212 (severity: CRITICAL, weakness: CWE-125)
An issue was discovered in JerryScript 1.0. There is a heap-based buffer over-read in the lit_read_code_unit_from_hex function in lit/lit-char-helpers.c via a RegExp("[\x0"); payload.
CVE-2017-18213 (severity: HIGH, weakness: NVD-CWE-Other)
In Exponent CMS before 2.4.1 Patch #6, certain admin users can elevate their privileges.
CVE-2017-18214 (severity: HIGH, weakness: CWE-400)
The moment module before 2.19.3 for Node.js is prone to a regular expression denial of service via a crafted date string, a different vulnerability than CVE-2016-4055.
CVE-2017-18215 (severity: CRITICAL, weakness: CWE-787)
xvpng.c in xv 3.10a has memory corruption (out-of-bounds write) when decoding PNG comment fields, leading to crashes or potentially code execution, because it uses an incorrect length value.
CVE-2017-18216 (severity: MEDIUM, weakness: CWE-476)
In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used.
CVE-2017-18217 (severity: MEDIUM, weakness: CWE-79)
An issue was discovered in InvoicePlane before 1.5.5. It was observed that the Email address and Web address parameters are vulnerable to Cross Site Scripting, related to application/modules/clients/views/view.php, application/modules/invoices/views/view.php, and application/modules/quotes/views/view.php.
CVE-2017-18218 (severity: HIGH, weakness: CWE-416)
In drivers/net/ethernet/hisilicon/hns/hns_enet.c in the Linux kernel before 4.13, local users can cause a denial of service (use-after-free and BUG) or possibly have unspecified other impact by leveraging differences in skb handling between hns_nic_net_xmit_hw and hns_nic_net_xmit.
CVE-2017-18219 (severity: MEDIUM, weakness: CWE-770)
An issue was discovered in GraphicsMagick 1.3.26. An allocation failure vulnerability was found in the function ReadOnePNGImage in coders/png.c, which allows attackers to cause a denial of service via a crafted file that triggers an attempt at a large png_pixels array allocation.
CVE-2017-18220 (severity: HIGH, weakness: CWE-416)
The ReadOneJNGImage and ReadJNGImage functions in coders/png.c in GraphicsMagick 1.3.26 allow remote attackers to cause a denial of service (magick/blob.c CloseBlob use-after-free) or possibly have unspecified other impact via a crafted file, a related issue to CVE-2017-11403.
CVE-2017-18221 (severity: MEDIUM, weakness: CWE-20)
The __munlock_pagevec function in mm/mlock.c in the Linux kernel before 4.11.4 allows local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls.
CVE-2017-18222 (severity: HIGH, weakness: CWE-119)
In the Linux kernel before 4.12, Hisilicon Network Subsystem (HNS) does not consider the ETH_SS_PRIV_FLAGS case when retrieving sset_count data, which allows local users to cause a denial of service (buffer overflow and memory corruption) or possibly have unspecified other impact, as demonstrated by incompatibility between hns_get_sset_count and ethtool_get_strings.
CVE-2017-18223 (severity: HIGH, weakness: CWE-287)
BMC Remedy AR System before 9.1 SP3, when Remedy AR Authentication is enabled, allows attackers to obtain administrative access.
CVE-2017-18224 (severity: MEDIUM, weakness: CWE-362)
In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.
CVE-2017-18225 (severity: HIGH, weakness: CWE-732)
The Gentoo net-im/jabberd2 package through 2.6.1 installs jabberd, jabberd2-c2s, jabberd2-router, jabberd2-s2s, and jabberd2-sm in /usr/bin owned by the jabber account, which might allow local users to gain privileges by leveraging access to this account and then waiting for root to execute one of these programs.
CVE-2017-18226 (severity: MEDIUM, weakness: CWE-732)
The Gentoo net-im/jabberd2 package through 2.6.1 sets the ownership of /var/run/jabber to the jabber account, which might allow local users to kill arbitrary processes by leveraging access to this account for PID file modification before a root script executes a "kill -TERM `cat /var/run/jabber/filename.pid`" command.
CVE-2017-18227 (severity: HIGH, weakness: CWE-295)
TitanHQ WebTitan Gateway has incorrect certificate validation for the TLS interception feature.
CVE-2017-18228 (severity: MEDIUM, weakness: CWE-79)
Remedy Mid Tier in BMC Remedy AR System 9.1 allows XSS via the ATTKey parameter in an arsys/servlet/AttachServlet request.
CVE-2017-18229 (severity: MEDIUM, weakness: CWE-770)
An issue was discovered in GraphicsMagick 1.3.26. An allocation failure vulnerability was found in the function ReadTIFFImage in coders/tiff.c, which allows attackers to cause a denial of service via a crafted file, because file size is not properly used to restrict scanline, strip, and tile allocations.
CVE-2017-18230 (severity: MEDIUM, weakness: CWE-476)
An issue was discovered in GraphicsMagick 1.3.26. A NULL pointer dereference vulnerability was found in the function ReadCINEONImage in coders/cineon.c, which allows attackers to cause a denial of service via a crafted file.
CVE-2017-18231 (severity: MEDIUM, weakness: CWE-476)
An issue was discovered in GraphicsMagick 1.3.26. A NULL pointer dereference vulnerability was found in the function ReadEnhMetaFile in coders/emf.c, which allows attackers to cause a denial of service via a crafted file.
CVE-2017-18232 (severity: MEDIUM, weakness: NVD-CWE-Other)
The Serial Attached SCSI (SAS) implementation in the Linux kernel through 4.15.9 mishandles a mutex within libsas, which allows local users to cause a denial of service (deadlock) by triggering certain error-handling code.
CVE-2017-18233 (severity: MEDIUM, weakness: CWE-190)
An issue was discovered in Exempi before 2.4.4. Integer overflow in the Chunk class in XMPFiles/source/FormatSupport/RIFF.cpp allows remote attackers to cause a denial of service (infinite loop) via crafted XMP data in a .avi file.
CVE-2017-18234 (severity: HIGH, weakness: CWE-416)
An issue was discovered in Exempi before 2.4.3. It allows remote attackers to cause a denial of service (invalid memcpy with resultant use-after-free) or possibly have unspecified other impact via a .pdf file containing JPEG data, related to XMPFiles/source/FormatSupport/ReconcileTIFF.cpp, XMPFiles/source/FormatSupport/TIFF_MemoryReader.cpp, and XMPFiles/source/FormatSupport/TIFF_Support.hpp.
CVE-2017-18235 (severity: MEDIUM, weakness: CWE-20)
An issue was discovered in Exempi before 2.4.3. The VPXChunk class in XMPFiles/source/FormatSupport/WEBP_Support.cpp does not ensure nonzero widths and heights, which allows remote attackers to cause a denial of service (assertion failure and application exit) via a crafted .webp file.
CVE-2017-18236 (severity: MEDIUM, weakness: CWE-835)
An issue was discovered in Exempi before 2.4.4. The ASF_Support::ReadHeaderObject function in XMPFiles/source/FormatSupport/ASF_Support.cpp allows remote attackers to cause a denial of service (infinite loop) via a crafted .asf file.
CVE-2017-18237 (severity: MEDIUM, weakness: CWE-476)
An issue was discovered in Exempi before 2.4.3. The PostScript_Support::ConvertToDate function in XMPFiles/source/FormatSupport/PostScript_Support.cpp allows remote attackers to cause a denial of service (invalid pointer dereference and application crash) via a crafted .ps file.
CVE-2017-18238 (severity: MEDIUM, weakness: CWE-835)
An issue was discovered in Exempi before 2.4.4. The TradQT_Manager::ParseCachedBoxes function in XMPFiles/source/FormatSupport/QuickTime_Support.cpp allows remote attackers to cause a denial of service (infinite loop) via crafted XMP data in a .qt file.
CVE-2017-18239 (severity: CRITICAL, weakness: NVD-CWE-Other)
A time-sensitive equality check on the JWT signature in the JsonWebToken.validate method in main/scala/authentikat/jwt/JsonWebToken.scala in authentikat-jwt (aka com.jason-goodwin/authentikat-jwt) version 0.4.5 and earlier allows the supplier of a JWT token to guess bit after bit of the signature by repeating validation requests.
CVE-2017-18240 (severity: MEDIUM, weakness: CWE-20)
The Gentoo app-admin/collectd package before 5.7.2-r1 sets the ownership of PID file directory to the collectd account, which might allow local users to kill arbitrary processes by leveraging access to this account for PID file modification before a root script sends a SIGKILL (when the service is stopped).
CVE-2017-18241 (severity: MEDIUM, weakness: CWE-476)
fs/f2fs/segment.c in the Linux kernel before 4.13 allows local users to cause a denial of service (NULL pointer dereference and panic) by using a noflush_merge option that triggers a NULL value for a flush_cmd_control data structure.
CVE-2017-18242 (severity: MEDIUM, weakness: CWE-125)
The apply_dependent_coupling function in libavcodec/aacdec.c in Libav 12.2 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted aac file.
CVE-2017-18243 (severity: MEDIUM, weakness: CWE-119)
The unpack_parse_unit function in libavcodec/dirac_parser.c in Libav 12.2 allows remote attackers to cause a denial of service (segmentation fault) via a crafted file.
CVE-2017-18244 (severity: MEDIUM, weakness: CWE-125)
The stereo_processing function in libavcodec/aacps.c in Libav 12.2 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted aac file, related to ff_ps_apply.
CVE-2017-18245 (severity: MEDIUM, weakness: CWE-125)
The mpc8_probe function in libavformat/mpc8.c in Libav 12.2 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted audio file.
CVE-2017-18246 (severity: MEDIUM, weakness: CWE-125)
The pcm_encode_frame function in libavcodec/pcm.c in Libav 12.2 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted media file.
CVE-2017-18247 (severity: MEDIUM, weakness: CWE-476)
The av_audio_fifo_size function in libavutil/audio_fifo.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted media file.
CVE-2017-18248 (severity: MEDIUM, weakness: CWE-20)
The add_job function in scheduler/ipp.c in CUPS before 2.2.6, when D-Bus support is enabled, can be crashed by remote attackers by sending print jobs with an invalid username, related to a D-Bus notification.
CVE-2017-18249 (severity: HIGH, weakness: CWE-362)
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.
CVE-2017-18250 (severity: MEDIUM, weakness: CWE-476)
An issue was discovered in ImageMagick 7.0.7. A NULL pointer dereference vulnerability was found in the function LogOpenCLBuildFailure in MagickCore/opencl.c, which allows attackers to cause a denial of service via a crafted file.
CVE-2017-18251 (severity: MEDIUM, weakness: CWE-772)
An issue was discovered in ImageMagick 7.0.7. A memory leak vulnerability was found in the function ReadPCDImage in coders/pcd.c, which allow remote attackers to cause a denial of service via a crafted file.
CVE-2017-18252 (severity: MEDIUM, weakness: CWE-617)
An issue was discovered in ImageMagick 7.0.7. The MogrifyImageList function in MagickWand/mogrify.c allows attackers to cause a denial of service (assertion failure and application exit in ReplaceImageInList) via a crafted file.
CVE-2017-18253 (severity: MEDIUM, weakness: CWE-476)
An issue was discovered in ImageMagick 7.0.7. A NULL pointer dereference vulnerability was found in the function LoadOpenCLDevices in MagickCore/opencl.c, which allows attackers to cause a denial of service via a crafted file.
CVE-2017-18254 (severity: MEDIUM, weakness: CWE-772)
An issue was discovered in ImageMagick 7.0.7. A memory leak vulnerability was found in the function WriteGIFImage in coders/gif.c, which allow remote attackers to cause a denial of service via a crafted file.
CVE-2017-18255 (severity: HIGH, weakness: CWE-190)
The perf_cpu_time_max_percent_handler function in kernel/events/core.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation.
CVE-2017-18256 (severity: MEDIUM, weakness: NVD-CWE-Other)
Brave Browser before 0.13.0 allows remote attackers to cause a denial of service (resource consumption) via a long alert() argument in JavaScript code, because window dialogs are mishandled.
CVE-2017-18257 (severity: MEDIUM, weakness: CWE-190)
The __get_data_block function in fs/f2fs/data.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow and loop) via crafted use of the open and fallocate system calls with an FS_IOC_FIEMAP ioctl.
CVE-2017-18258 (severity: MEDIUM, weakness: CWE-770)
The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.
CVE-2017-18259 (severity: MEDIUM, weakness: CWE-79)
Dolibarr ERP/CRM is affected by stored Cross-Site Scripting (XSS) in versions through 7.0.0.
CVE-2017-18260 (severity: HIGH, weakness: CWE-89)
Dolibarr ERP/CRM is affected by multiple SQL injection vulnerabilities in versions through 7.0.0 via comm/propal/list.php (viewstatut parameter) or comm/propal/list.php (propal_statut parameter, aka search_statut parameter).
CVE-2017-18261 (severity: MEDIUM, weakness: CWE-835)
The arch_timer_reg_read_stable macro in arch/arm64/include/asm/arch_timer.h in the Linux kernel before 4.13 allows local users to cause a denial of service (infinite recursion) by writing to a file under /sys/kernel/debug in certain circumstances, as demonstrated by a scenario involving debugfs, ftrace, PREEMPT_TRACER, and FUNCTION_GRAPH_TRACER.
CVE-2017-18262 (severity: MEDIUM, weakness: CWE-20)
Blackboard Learn (Since at least 17th of October 2017) has allowed Unvalidated Redirects on any signed-in user through its endpoints for handling Shibboleth logins, as demonstrated by a webapps/bb-auth-provider-shibboleth-BBLEARN/execute/shibbolethLogin?returnUrl= URI.
CVE-2017-18263 (severity: HIGH, weakness: CWE-22)
Seagate Media Server in Seagate Personal Cloud before 4.3.18.4 has directory traversal in getPhotoPlaylistPhotos.psp via a parameter named url.
CVE-2017-18264 (severity: CRITICAL, weakness: NVD-CWE-Other)
An issue was discovered in libraries/common.inc.php in phpMyAdmin 4.0 before 4.0.10.20, 4.4.x, 4.6.x, and 4.7.0 prereleases. The restrictions caused by $cfg['Servers'][$i]['AllowNoPassword'] = false are bypassed under certain PHP versions (e.g., version 5). This can allow the login of users who have no password set even if the administrator has set $cfg['Servers'][$i]['AllowNoPassword'] to false (which is also the default). This occurs because some implementations of the PHP substr function return false when given '' as the first argument.