CVE-2026-42523

Jenkins GitHub Plugin 1.46.0 and earlier improperly processes the current job URL as part of JavaScript implementing validation of the feature "GitHub hook trigger for GITScm polling", resulting in a stored cross-site scripting (XSS) vulnerability exploitable by non-anonymous attackers with Overall/Read permission.

CVSS 3.1

9.0CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-26)

CWE

CWE-79

Published

2026-04-29

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• jenkins:github

Packages (OSV)

References

• https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3704

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