Unrated severityNVD Advisory· Published Dec 11, 2025· Updated Feb 26, 2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
CVE-2025-12716
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that, under certain conditions could have allowed an authenticated user to perform unauthorized actions on behalf of another user by creating wiki pages with malicious content.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*range: 18.4
- (no CPE)range: >=18.4, <18.4.6 || >=18.5, <18.5.4 || >=18.6, <18.6.2
Patches
Vulnerability mechanics
References
3- hackerone.com/reports/3405832mitretechnical-descriptionexploitpermissions-required
- gitlab.com/gitlab-org/gitlab/-/issues/579548mitreissue-trackingpermissions-required
- about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/mitre
News mentions
1- GitLab Patch Release: 18.6.2, 18.5.4, 18.4.6GitLab Security Releases · Dec 10, 2025