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Advisory record · GHSA-f8h4-46xv-h7jj

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

CVSS 8.0 HighEPSS 0.0028 · 20th percentile

Published by the GitHub Advisory Database at 29 Apr 2026, 15:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.jenkins-ci.plugins:htmlpublisherMaven<427.1427.1
Identifiers
GHSA-f8h4-46xv-h7jj · CVE-2026-42524
Weakness (CWE)
CWE-79
Tags
Published
29 Apr 2026
Updated
6 May 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The Jenkins HTML Publisher Plugin (org.jenkins-ci.plugins:htmlpublisher) versions before 427.1 are affected. The plugin does not escape the job name and URL in the legacy wrapper file, which allows a stored cross-site scripting attack by a user with Item/Configure permission. Upgrade to version 427.1, which escapes these values.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.0 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.0028, the 20th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:20 UTC First seen by agentprime
  2. 31 Oct 2026, 14:20 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.