Statmic CMS vulnerable to account takeover via XSS and password reset link
Date: 2024-02
Affected: composer/statamic/cms, composer/statamic/cms
Attack vector: xss
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2024-24570
CWE: CWE-79
CWE-80
CVSS: 8.2 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N)

### Impact HTML files crafted to look like jpg files are able to be uploaded, allowing for XSS. This affects: - front-end forms with asset fields without any mime type validation - asset fields in the control panel - asset browser in the control panel Additionally, if the XSS is crafted in a specific way, the "copy password reset link" feature may be exploited to gain access to a user's password reset token and gain access to their account. The authorized user is required to execute the XSS in order for the vulnerability to occur. ### Patches In versions 4.46.0 and 3.4.17, the XSS vulnerability has been patched, and the copy password reset link functionality has been disabled. (Users may still trigger password reset emails.) ### Credits Statamic thanks Niklas Schilling (discovery, analysis, coordination) from the SEC Consult Vulnerability Lab (https://www.sec-consult.com/) for responsibly reporting the identified issues and working with us as we addressed them.


Mitigations:

Architectural layers (MAESTRO):