Stored Cross-Site Scripting Vulnerability in Jenkins HTML Publisher Plugin
CVE-2026-42524

8HIGH

Key Information:

Vendor

Jenkins
Status
Jenkins Html Publisher Plugin
Vendor
CVE Published:
29 April 2026

What is CVE-2026-42524?

The Jenkins HTML Publisher Plugin prior to version 428 is susceptible to a stored cross-site scripting (XSS) vulnerability. This occurs due to inadequate escaping of job names and URLs in the legacy wrapper file, enabling attackers with Item/Configure permissions to inject malicious scripts. This vulnerability can compromise the integrity of Jenkins instances and expose sensitive information if exploited.

Affected Version(s)

Jenkins HTML Publisher Plugin 0 <= 427

References

https://www.jenkins.io/security/advisory/2026-04-29/#SECU...
vendor-advisory

CVSS V3.1

Score:
8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.