# CVE-2026-42524: Jenkins HTML Publisher Plugin has a XSS vulnerability in the legacy wrapper file

Source: https://junglewise.ai/threats/cve-2026-42524-jenkins-html-publisher-plugin-has-a-xss-vulnerability-in-the  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-29  
License: CC BY 4.0 with a link back

CVE-2026-42524 · Severity: high · CVSS 8 · Published 2026-04-29

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.

Technologies: [org.jenkins-ci.plugins:htmlpublisher (Maven)](https://junglewise.ai/threats/technologies/org-jenkins-ci-plugins-htmlpublisher). Vendors: [Jenkins](https://junglewise.ai/threats/vendors/jenkins), [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2026-42524 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-42524 being exploited in the wild.

**How severe is CVE-2026-42524?** High severity, with a CVSS score of 8, published 29 April 2026.

**Which products and versions are affected?** org.jenkins-ci.plugins:htmlpublisher (Maven) ECOSYSTEM:introduced=0,fixed=427.1.

**Is there a fix for CVE-2026-42524?** Yes. org.jenkins-ci.plugins:htmlpublisher (Maven): upgrade to 427.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-42524?** Check whether you run Jenkins Html Publisher or org.jenkins-ci.plugins:htmlpublisher (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- org.jenkins-ci.plugins:htmlpublisher (Maven): upgrade to 427.1 or later

  ```sh
  # set org.jenkins-ci.plugins:htmlpublisher to 427.1 in your pom.xml or build.gradle
  ```


## Affected products

- Jenkins Html Publisher
- org.jenkins-ci.plugins:htmlpublisher (Maven) ECOSYSTEM:introduced=0,fixed=427.1

## Identifiers

- CVE-2026-42524
- GHSA-f8h4-46xv-h7jj

## Related threats

- [Jenkins HTML Publisher Plugin vulnerability displays controller file system information in its logs](https://junglewise.ai/threats/cve-2025-53651-jenkins-html-publisher-plugin-vulnerability-displays-controller)
- [Jenkins HTML Publisher Plugin Stored XSS vulnerability](https://junglewise.ai/threats/cve-2024-28150-jenkins-html-publisher-plugin-stored-xss-vulnerability)
- [Jenkins HTML Publisher Plugin Path traversal vulnerability](https://junglewise.ai/threats/cve-2024-28151-jenkins-html-publisher-plugin-path-traversal-vulnerability)
- [Jenkins HTML Publisher Plugin does not properly sanitize input](https://junglewise.ai/threats/cve-2024-28149-jenkins-html-publisher-plugin-does-not-properly-sanitize-input)
- [Jenkins HTML Publisher Plugin vulnerable to Cross-site Scripting](https://junglewise.ai/threats/cve-2019-10432-jenkins-html-publisher-plugin-vulnerable-to-cross-site-scripting)