Vulnerability · Published Apr 29, 2026 · Assigned by jenkins
CVE-2026-42524
High 8.0
In plain English
A high-severity cross-site scripting in Jenkins HTML Publisher Plugin from Jenkins Project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.0High
Exploit odds (30 days)0.3%top 79.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.jenkins-ci.plugins:htmlpublisher | 427.1 | GHSA-f8h4-46xv-h7jj |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins Project | Jenkins HTML Publisher Plugin | 0 – through 427 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
References
- Jenkins Security Advisory 2026-04-29 vendor-advisory