PatchTheCVECVE-2026-42524: Jenkins HTML Publisher Plugin 427 and earlier does not escape job name and URL in the legacy wrapper file, res
CVE-2026-42524 is a high-severity flaw (CVSS 8.0) affecting html publisher. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.0 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | Required |
| EPSS exploit chance | 0.3% (top 80%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2026-04-29 |
| Last modified | 2026-10-26 |
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-42524?
html publisher: upgrade to newer than 427. Exact commands for each OS are on this page.
Is CVE-2026-42524 being exploited?
CVE-2026-42524 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-42524 affect?
CVE-2026-42524 affects html publisher. Severity is high (CVSS 8.0). 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.
How urgent is CVE-2026-42524?
Priority 33/100. High severity