XSS in GitLab
CVE-2025-9222
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 class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- GitLab — versions 18.7.0, 18.2.2, 18.6
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/562561 (issue-tracking, permissions-required, Broken Link)
- hackerone.com/reports/3297483 (Permissions Required, technical-description, permissions-required, exploit)
- about.gitlab.com/releases/2026/01/07/patch-release-gitlab-18-7-1-released/ (Release Notes, Vendor Advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2025-9222?
- CVE-2025-9222 is a high-severity vulnerability in GitLab, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-01-09.
- How severe is CVE-2025-9222?
- High severity. CVSS v3 base score is 8.7 out of 10.