CVE Catalog

CVE-2026-84677

MediumCVSS 5.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.14%

3th percentile - higher than 3% of all known CVEs

Summary

Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin names, descriptions, and version metadata) on plugin download index pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide a plugin for hosting.

Risk Assessment

Attackers can inject malicious scripts that execute in the browsers of users visiting download pages, potentially leading to session theft or other attacks.

Recommendation

Update Jenkins update-center2 to a version that escapes plugin-provided values, and restrict plugin hosting to trusted sources.

Related vulnerabilities

Original NVD description (English source)

Jenkins update-center2 3.18.3 and earlier does not escape plugin-provided values (plugin names, descriptions, and version metadata) on plugin download index pages, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide a plugin for hosting.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS