CVE-2020-2257: Jenkins Validating String Parameter

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

Jenkins Validating String Parameter Plugin 2.4 and earlier does not escape various user-controlled fields, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

Affected products

• Jenkins Validating String Parameter: up to and including 2.4

Published 2020-09-16. Last modified 2026-06-17.