rainbutterfly/cve_corpus huggingface dataset:
CVE-2022-37333 
SQL injection vulnerability in the Exment ((PHP8) exceedone/exment v5.0.2 and earlier and exceedone/laravel-admin v3.0.0 and earlier, (PHP7) exceedone/exment v4.4.2 and earlier and exceedone/laravel-admin v2.2.2 and earlier) allows remote authenticated attackers to execute arbitrary SQL commands.
Problem types: description: SQL Injection
Affected products: vendor: Kajitori Co.,Ltd
product: Exment
Published: 2022-08-24T08:40:18.000Z
CVE-2022-37334 
Improper initialization in BIOS firmware for some Intel(R) NUC 11 Pro Kits and Intel(R) NUC 11 Pro Boards before version TNTGL357.0064 may allow an authenticated user to potentially enable escalation of privilege via local access.
Problem types: description: escalation of privilege
Affected products: vendor: n/a
product: Intel(R) NUC 11 Pro Kits and Intel(R) NUC 11 Pro Boards
default_status: unaffected
CVSS v3.1: version: 3.1
baseScore: 7
baseSeverity: HIGH
vectorString: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Published: 2022-11-11T15:48:54.894Z
CVE-2022-37335 WordPress Word Search Puzzles game plugin <= 2.0.1 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability
Authenticated (author+) Stored Cross-Site Scripting (XSS) vulnerability in WHA's Word Search Puzzles game plugin <= 2.0.1 at WordPress.
Problem types: cwe_id: CWE-79
description: CWE-79 Cross-site Scripting (XSS)
Affected products: vendor: WHA
product: Word Search Puzzles game (WordPress plugin)
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.8
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: HIGH
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
version: 3.1
Credits: lang: en
value: Vulnerability discovered by Ngo Van Thien (Patchstack Alliance)
Published: 2022-09-09T14:40:07.270Z
CVE-2022-37336 
Improper input validation in BIOS firmware for some Intel(R) NUC may allow a privileged user to potentially enable escalation of privilege via local access.
Problem types: description: escalation of privilege
cwe_id: CWE-20
description: Improper input validation
Affected products: vendor: n/a
product: Intel(R) NUC
default_status: unaffected
CVSS v3.1: version: 3.1
baseScore: 7.9
baseSeverity: HIGH
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: CHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: HIGH
Published: 2023-08-11T02:37:18.544Z
CVE-2022-37337 
A command execution vulnerability exists in the access control functionality of Netgear Orbi Router RBR750 4.6.8.5. A specially-crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Problem types: cwe_id: CWE-78
description: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products: vendor: Netgear
product: Orbi Router RBR750
CVSS v3.1: version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
baseScore: 9.1
baseSeverity: CRITICAL
Published: 2023-03-21T17:41:26.101Z
CVE-2022-37338 WordPress Blossom Recipe Maker plugin <= 1.0.7 - Multiple Authenticated Stored Cross-Site Scripting (XSS) vulnerabilities
Multiple Authenticated (contributor+) Stored Cross-Site Scripting (XSS) vulnerabilities in Blossom Recipe Maker plugin <= 1.0.7 at WordPress.
Problem types: cwe_id: CWE-79
description: CWE-79 Cross-site Scripting (XSS)
Affected products: vendor: Blossomthemes
product: Blossom Recipe Maker (WordPress plugin)
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.1
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: LOW
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
version: 3.1
Credits: lang: en
value: Vulnerability discovered by Ngo Van Thien (Patchstack Alliance)
Published: 2022-09-23T13:35:04.708Z
CVE-2022-37339 WordPress Meet My Team plugin <= 2.0.5 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability
Authenticated (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in Fullworks Meet My Team plugin <= 2.0.5 at WordPress.
Problem types: cwe_id: CWE-79
description: CWE-79 Cross-site Scripting (XSS)
Affected products: vendor: Fullworks
product: Meet My Team (WordPress plugin)
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.1
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: LOW
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
version: 3.1
Credits: lang: en
value: Vulnerability discovered by Ngo Van Thien (Patchstack Alliance)
Published: 2022-09-23T13:39:10.675Z
CVE-2022-37340 
Uncontrolled search path in some Intel(R) QAT drivers for Windows before version 1.6 may allow an authenticated user to potentially enable escalation of privilege via local access.
Problem types: description: escalation of privilege
Affected products: vendor: n/a
product: Intel(R) QAT drivers for Windows
default_status: unaffected
CVSS v3.1: version: 3.1
baseScore: 6.7
baseSeverity: MEDIUM
vectorString: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: HIGH
privilegesRequired: LOW
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
Published: 2023-02-16T20:00:26.055Z
CVE-2022-37341 
Improper access control in some Intel(R) Ethernet Adapters and Intel(R) Ethernet Controller I225 Manageability firmware may allow a privileged user to potentially enable escalation of privilege via local access.
Problem types: description: escalation of privilege
cwe_id: CWE-284
description: Improper access control
Affected products: vendor: n/a
product: Intel(R) Ethernet Adapters and Intel(R) Ethernet Controller I225 Manageability firmware
default_status: unaffected
CVSS v3.1: version: 3.1
baseScore: 7.2
baseSeverity: HIGH
vectorString: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H
attackVector: LOCAL
attackComplexity: HIGH
privilegesRequired: HIGH
userInteraction: NONE
scope: CHANGED
confidentialityImpact: NONE
integrityImpact: HIGH
availabilityImpact: HIGH
Published: 2024-05-16T20:47:52.449Z
CVE-2022-37342 WordPress Add Shortcodes Actions And Filters plugin <= 2.0.9 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability
Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability Add Shortcodes Actions And Filters plugin <= 2.0.9 at WordPress.
Problem types: cwe_id: CWE-79
description: CWE-79 Cross-site Scripting (XSS)
Affected products: vendor: Michael Simpson
product: Add Shortcodes Actions And Filters (WordPress plugin)
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.8
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: HIGH
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
version: 3.1
Credits: lang: en
value: Vulnerability discovered by ptsfence (Patchstack Alliance)
Published: 2022-09-23T14:32:51.722Z
CVE-2022-37343 
Improper access control in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
Problem types: description: escalation of privilege
cwe_id: CWE-284
description: Improper access control
Affected products: vendor: n/a
product: Intel(R) Processors
default_status: unaffected
CVSS v3.1: version: 3.1
baseScore: 7.2
baseSeverity: HIGH
vectorString: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
attackVector: LOCAL
attackComplexity: HIGH
privilegesRequired: HIGH
userInteraction: NONE
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: NONE
Published: 2023-08-11T02:37:00.271Z
CVE-2022-37344 WordPress Accommodation System plugin <= 1.0.1 - Missing Access Control vulnerability
Missing Access Control vulnerability in PHP Crafts Accommodation System plugin <= 1.0.1 at WordPress.
Problem types: cwe_id: CWE-264
description: CWE-264 Permissions, Privileges, and Access Controls
Affected products: vendor: PHP Crafts
product: Accommodation System (WordPress plugin)
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 7.6
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: LOW
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
version: 3.1
Credits: lang: en
value: Vulnerability discovered by ptsfence (Patchstack Alliance)
Published: 2022-09-06T22:19:14.067Z
CVE-2022-37345 
Improper authentication in BIOS firmware[A1] for some Intel(R) NUC Kits before version RY0386 may allow an authenticated user to potentially enable escalation of privilege via local access.
Problem types: description: escalation of privilege
Affected products: vendor: n/a
product: Intel(R) NUC Kits
default_status: unaffected
CVSS v3.1: version: 3.1
baseScore: 7.8
baseSeverity: HIGH
vectorString: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Published: 2022-11-11T15:48:50.315Z
CVE-2022-37346 
EC-CUBE plugin 'Product Image Bulk Upload Plugin' 1.0.0 and 4.1.0 contains an insufficient verification vulnerability when uploading files. Exploiting this vulnerability allows a remote unauthenticated attacker to upload arbitrary files other than image files. If a user with an administrative privilege of EC-CUBE where the vulnerable plugin is installed is led to upload a specially crafted file, an arbitrary script may be executed on the system.
Problem types: description: Improper input validation
Affected products: vendor: EC-CUBE CO.,LTD.
product: Product Image Bulk Upload Plugin
Published: 2022-09-27T01:55:15.000Z
CVE-2022-37347 
Trend Micro Security 2021 and 2022 (Consumer) is vulnerable to an Out-Of-Bounds Read Information Disclosure Vulnerability that could allow an attacker to read sensitive information from other memory locations and cause a crash on an affected machine. This vulnerability is similar to, but not the same as CVE-2022-35234.
Problem types: description: OOB Read Information Disclosure
Affected products: vendor: Trend Micro
product: Trend Micro Security (Consumer)
Published: 2022-09-19T18:00:58.000Z
CVE-2022-37348 
Trend Micro Security 2021 and 2022 (Consumer) is vulnerable to an Out-Of-Bounds Read Information Disclosure Vulnerability that could allow an attacker to read sensitive information from other memory locations and cause a crash on an affected machine. This vulnerability is similar to, but not the same as CVE-2022-37347.
Problem types: description: OOB Read Information Disclosure
Affected products: vendor: Trend Micro
product: Trend Micro Security (Consumer)
Published: 2022-09-19T18:00:59.000Z
CVE-2022-37349 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the submitForm method. By performing actions in JavaScript, an attacker can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17142.
Problem types: cwe_id: CWE-125
description: CWE-125: Out-of-bounds Read
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Suyue Guo and Wei You from Renmin University of China
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37350 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of Collab objects. By performing actions in JavaScript, an attacker can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17144.
Problem types: cwe_id: CWE-125
description: CWE-125: Out-of-bounds Read
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Suyue Guo and Wei You from Renmin University of China
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37351 
This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of J2K files. Crafted data in a J2K file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-17636.
Problem types: cwe_id: CWE-125
description: CWE-125: Out-of-bounds Read
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37352 
This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of WMF files. Crafted data in a WMF file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-17638.
Problem types: cwe_id: CWE-125
description: CWE-125: Out-of-bounds Read
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37353 
This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of EMF files. Crafted data in an EMF file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-17637.
Problem types: cwe_id: CWE-125
description: CWE-125: Out-of-bounds Read
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37354 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of J2K files. Crafted data in a J2K file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17628.
Problem types: cwe_id: CWE-787
description: CWE-787: Out-of-bounds Write
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37355 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of JPG files. Crafted data in a JPG file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17629.
Problem types: cwe_id: CWE-787
description: CWE-787: Out-of-bounds Write
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37356 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of JPG files. Crafted data in a JPG file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17630.
Problem types: cwe_id: CWE-787
description: CWE-787: Out-of-bounds Write
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37357 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of ICO files. Crafted data in an ICO file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17631.
Problem types: cwe_id: CWE-787
description: CWE-787: Out-of-bounds Write
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37358 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of JPG files. Crafted data in a JPG file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17632.
Problem types: cwe_id: CWE-787
description: CWE-787: Out-of-bounds Write
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37359 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of J2K files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17633.
Problem types: cwe_id: CWE-416
description: CWE-416: Use After Free
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37360 
This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of EMF files. Crafted data in an EMF file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-17635.
Problem types: cwe_id: CWE-125
description: CWE-125: Out-of-bounds Read
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37361 
This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of JP2 files. Crafted data in a JP2 file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-17674.
Problem types: cwe_id: CWE-125
description: CWE-125: Out-of-bounds Read
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37362 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PNG files. Crafted data in a PNG file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17660.
Problem types: cwe_id: CWE-787
description: CWE-787: Out-of-bounds Write
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37363 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of EMF files. Crafted data in an EMF file can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17673.
Problem types: cwe_id: CWE-125
description: CWE-125: Out-of-bounds Read
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z
CVE-2022-37364 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of EMF files. Crafted data in an EMF file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17634.
Problem types: cwe_id: CWE-787
description: CWE-787: Out-of-bounds Write
Affected products: vendor: PDF-XChange
product: PDF-XChange Editor
Credits: lang: en
value: Mat Powell of Trend Micro Zero Day Initiative
Published: 2023-03-29T00:00:00.000Z