GitLab EE Cross-Site Scripting Vulnerability with Content Security Policy Bypass

A cross-site scripting vulnerability has been identified in GitLab EE, allowing attackers to inject malicious scripts that are executed in the context of the user's browser. This issue also bypasses the Content Security Policy, potentially leading to further exploitation. The vulnerability affects all GitLab EE versions from 16.6 prior to 17.9.7, 17.10 prior to 17.10.5, and 17.11 prior to 17.11.1.

Impact

Exploitation of this vulnerability allows for cross-site scripting attacks, where an attacker can inject and execute malicious scripts in the context of the user's browser. This also includes bypassing the Content Security Policy, which could be used to facilitate further attacks.