CVE-2021-39878: GitLab

Medium severity, CVSS 5.4. EPSS: 0.8% chance of exploitation in the next 30 days.

A stored Reflected Cross-Site Scripting vulnerability in the Jira integration in GitLab version 13.0 up to 14.3.1 allowed an attacker to execute arbitrary javascript code.

Affected products

• GitLab GitLab: from 13.0.0, before 14.1.7 (fixed in 14.1.7); from 14.2.0, before 14.2.5 (fixed in 14.2.5); from 14.3.0, before 14.3.1 (fixed in 14.3.1)

Published 2021-10-05. Last modified 2026-06-17.