GitLab CE/EE XSS via GFM (before 18.5.5 / 18.6.3 / 18.7.1)
CVE-2025-9222 Published on January 9, 2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2.2 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user to achieve stored cross-site scripting by exploiting GitLab Flavored Markdown.
Vulnerability Analysis
CVE-2025-9222 is exploitable with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2025-9222 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2025-9222
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Affected Versions
GitLab:- Version 18.2.2 and below 18.5.5 is affected.
- Version 18.6 and below 18.6.3 is affected.
- Version 18.7 and below 18.7.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.