Medium (5.4) in jenkins gitlab. EPSS 74% chance of exploitation in the next 30 days. Fixed in org.jenkins-ci.plugins:gitlab-plugin 1.5.35.
Jenkins GitLab Plugin 1.5.34 and earlier does not escape multiple fields inserted into the description of webhook-triggered builds, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.
Severity
CVSS 3.1
5.4 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
74% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)