XSS in GitLab
CVE-2025-4700
An issue has been discovered in GitLab CE/EE affecting all versions from 15.10 before 18.0.5, 18.1 before 18.1.3, and 18.2 before 18.2.1 that, under specific circumstances, could have potentially allowed a successful attacker to trigger unintended content rendering leading to XSS.
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: 0.002 (13.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- GitLab — versions 15.10, 18.1, 18.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.com/gitlab-org/gitlab/-/issues/542915 (issue-tracking, permissions-required, Broken Link)
- hackerone.com/reports/3120062 (Permissions Required, technical-description, permissions-required, exploit)
Frequently asked questions
- What is CVE-2025-4700?
- CVE-2025-4700 is a high-severity vulnerability in GitLab, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2025-07-23.
- How severe is CVE-2025-4700?
- High severity. CVSS v3 base score is 8.7 out of 10.
- Is CVE-2025-4700 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.