CVE-2026-42524
Jenkins HTML Publisher Plugin has a XSS vulnerability in the legacy wrapper file
8.0
HIGH
CVSS 3.1
EPSS 0.05%
Description
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 to fix CVE-2026-42524
To remediate CVE-2026-42524, upgrade the affected package to a fixed version below.
- —upgrade to 427.1 or later
Is CVE-2026-42524 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 427.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |