Zammad · Zammad · CVE-2021-35303
Name of the Vulnerable Software and Affected Versions:
Zammad versions 1.0.x through 4.0.0
Description:
The issue allows remote attackers to execute arbitrary web script or HTML via the `User Avatar` attribute, enabling Cross Site Scripting (XSS) attacks. This can lead to the execution of malicious scripts on the victim's browser.
Recommendations:
For versions 1.0.x through 4.0.0, update to a version later than 4.0.0 to resolve the issue. As a temporary workaround, consider restricting access to the `User Avatar` attribute to minimize the risk of exploitation.