🛡️ CVE-2026-42524 — html-publisher

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-79 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Jenkins HTML Publisher Plugin has a XSS vulnerability in the legacy wrapper file

Jenkins HTML Publisher Plugin versoins 427 and earlier do not escape the job name and URL in the legacy wrapper file.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

HTML Publisher Plugin 427.1 escapes job name and URL when generating the legacy wrapper file.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-42524 is classified as CWE-79: Cross-site Scripting (XSS). User-supplied data is written into a page without escaping, so attacker script runs in the browser of anyone who views it.

Affected software

CVE-2026-42524 is recorded against 2 packages.

  • html-publisher (fixed in 427)
  • org.jenkins-ci.plugins:htmlpublisher (fixed in 427.1)

Timeline and source

Published on 29 April 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.jenkins.io

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE CWE-79
Public Exploit ✅ No
Source NVD
Published 2026-04-29
Updated 2026-08-12
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
html-publisher — 427
org.jenkins-ci.plugins:htmlpublisher — 427.1

Similar Threats

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