CVE-2026-42523

critical · 9

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

0.3%

EPSS (exploit prob.)

21st

EPSS percentile

2026-04-29

Published

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

Weaknesses

CWE-79

Affected products

Vendor	Product	Affected versions
jenkins	github	< 1.46.0.1

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-42523