CVE-2026-42523

CRITICAL

Jenkins Project Jenkins GitHub Plugin < 1.46.0 - XSS

Title source: rule

Description

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.

References (1)

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

Scores

CVSS v3 9.0

EPSS 0.0004

EPSS Percentile 12.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-79

Status published

Products (1)

Jenkins Project/Jenkins GitHub Plugin < 1.46.0

Published Apr 29, 2026

Tracked Since Apr 29, 2026