CVE-2018-19573: GitLab

Medium severity, CVSS 5.4. EPSS: 1% chance of exploitation in the next 30 days.

GitLab CE/EE, versions 10.3 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1, are vulnerable to an XSS vulnerability in Markdown fields via Mermaid.

Affected products

• GitLab GitLab: from 11.0.0, before 11.3.11 (fixed in 11.3.11); from 11.4.0, before 11.4.8 (fixed in 11.4.8); from 11.5.0, before 11.5.1 (fixed in 11.5.1)

Published 2019-07-10. Last modified 2026-06-17.