Stored XSS in Jenkins HTMLPub Plugin via Unescaped Job Name/URL
CVE-2026-42524 Published on April 29, 2026

Jenkins HTML Publisher Plugin 427 and earlier does not escape job name and URL in the legacy wrapper file, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-42524 is exploitable with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a XSS Vulnerability?

The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVE-2026-42524 has been classified to as a XSS vulnerability or weakness.


Products Associated with CVE-2026-42524

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Affected Versions

Jenkins Project Jenkins HTML Publisher Plugin: