Stored XSS via POST config.xml API in Jenkins 2.483-2.567 & LTS 2.492.1-2.555.2
CVE-2026-53441 Published on June 10, 2026
Jenkins 2.483 through 2.567 (both inclusive), LTS 2.492.1 through 2.555.2 (both inclusive) does not escape the user-provided description of a generic offline cause that could be set through the `POST config.xml` API, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure permission.
Products Associated with CVE-2026-53441
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Affected Versions
Jenkins Project Jenkins:- Before 2.483 is unaffected.
- Version 2.568 and below * is unaffected.
- Version 2.555.3 and below 2.555.* is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.