CVE-2026-42524

High

Description

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.

SeverityHigh

CVSS8.0

Exploit probability—

Product

Jenkins Html Publisher

PublishedApr 29, 2026

First seenApr 29, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

org.jenkins-ci.plugins:htmlpublisher427.1 or later

Vendor advisories

jenkins.io/security/advisory/2026-04-29/#SECURITY-3706

Affected products

Product	Affected versions	Fixed in
jenkins html_publisher	v ≤ 427	—
org.jenkins-ci.plugins:htmlpublisherMaven	v < 427.1	427.1

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