CVE-2025-9222

HIGH

GitLab CE/EE <18.5.5-18.7.1 - XSS

Title source: llm

Description

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.

References (3)

[Release Notes, Vendor Advisory] https://about.gitlab.com/releases/2026/01/07/patch-release-gitlab-18-7-1-released/

[Broken Link] https://gitlab.com/gitlab-org/gitlab/-/issues/562561

[Permissions Required] https://hackerone.com/reports/3297483

Scores

CVSS v3 8.7

EPSS 0.0003

EPSS Percentile 8.8%

Attack Vector NETWORK

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

Classification

CWE

CWE-79

Status published

Affected Products (4)

gitlab/gitlab < 18.5.5

gitlab/gitlab

Timeline

Published Jan 09, 2026

Tracked Since Feb 18, 2026