Cross-site scripting (XSS) vulnerability in the Extra Columns plugin before 1.17 in Jenkins allows remote attackers to inject arbitrary web script or HTML by leveraging failure to filter tool tips through the configured markup formatter.
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
1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)