GitLab CE/EE XSS: Authenticated exec via improper sanitization (18.11.7, 19.1.2)
CVE-2026-13320 Published on July 8, 2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.7 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user to execute arbitrary scripts in another user's browser session due to improper sanitization of user-supplied input.
Vulnerability Analysis
CVE-2026-13320 is exploitable with network access, requires user interaction and user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-13320 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-13320
Want to know whenever a new CVE is published for GitLab? stack.watch will email you.
Affected Versions
GitLab:- Version 15.7 and below 18.11.7 is affected.
- Version 19.0 and below 19.0.4 is affected.
- Version 19.1 and below 19.1.2 is affected.