XSS in Gitlab

CVE-2025-1763

An issue has been discovered in GitLab EE that allows for cross-site-scripting attack and content security policy bypass in a user's browser under specific conditions, affecting all versions from 16.6 before 17.9.7, 17.10 before 17.10.5, and 17.11 before 17.11.1.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (42.3th percentile) — read the EPSS interpretation.

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.

Affected products

  • Gitlab — versions 17.11.0, 17.11, 17.10

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@gitlab.com (issue-tracking, Exploit, permissions-required, Issue Tracking)
  • cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)

Frequently asked questions

What is CVE-2025-1763?
CVE-2025-1763 is a high-severity vulnerability in Gitlab, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2025-05-30.
How severe is CVE-2025-1763?
High severity. CVSS v3 base score is 8.7 out of 10.
Is CVE-2025-1763 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.