Medium (5.4) in jenkins custom checkbox parameter. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in io.jenkins.plugins:custom-checkbox-parameter 1.2.
Jenkins Custom Checkbox Parameter Plugin 1.1 and earlier does not escape parameter names of custom checkbox parameters, 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
0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)