AIKIDO-2026-127928
gitlab-ce is vulnerable to Cross-Site Scripting (XSS)
82
High Risk
This Affects:
gitlab-ceTL;DR
The Markdown JSON table renderer does not adequately sanitize user-controlled data. An authenticated attacker can craft content that induces a targeted user to perform unintended state-changing HTTP requests in their session. The fix sanitizes JSON table renderer input so crafted Markdown cannot drive those requests.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
gitlab-ce is vulnerable to Cross-Site Scripting (XSS) in versions 15.3.0 - 19.1.7, 19.2.0 - 19.2.5 and 19.3.0 - 19.3.1.
How to fix this
Upgrade the gitlab-ce library to the patch version.
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