CVE-2025-12716 HIGH

CVE-2025-12716: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

Vendor Gitlab
Product GitLab
Weakness CWE-79 · XSS
Published December 11, 2025
Last update February 26, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 11, 2025 CVE published
February 26, 2026 Record updated