CVE-2023-3500

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.0 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A reflected XSS was possible when creating specific PlantUML diagrams that allowed the attacker to perform arbitrary actions on behalf of victims.

Score

CVSS 3.1 6.1 Medium

Status

Modified - cve@gitlab.com

Published

2023-08-02

Last modified

2025-11-20

Weaknesses

CWE-79

Affected products

• Gitlab (Gitlab)

References

• https://gitlab.com/gitlab-org/gitlab/-/issues/416902
• https://hackerone.com/reports/2010926