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CVE-2026-42523

Published: Apr 29, 2026Updated: May 5, 2026 Sources: CVE List NVD BDUCWE-79
NVD MITRE
9.0CVSSCRITICAL
EPSS Score
0.3%
Top 80.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-79

Affected Products

githubjenkins
On-prem
DevTools & CI / ci-cd
Jenkins GitHub PluginCD FoundationDevTools & CI
Jenkins GitHub PluginJenkins Project
On-prem
DevTools & CI / ci-cd
jenkinsoss-projectUSDevTools & CIaka jenkins ci
cd foundationoss-projectUSDevTools & CIaka c d foundation, cdu foundation
jenkins projectoss-projectUSDevTools & CI

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Apr 29, 2026
Last Updated
May 5, 2026

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