CVE-2023-4303: HTML injection vulnerability in Fortify Plugin

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-08-21 · updated 2026-06-17
Weakness: CWE-79

Description

Jenkins Fortify Plugin 22.1.38 and earlier does not escape the error message for a form validation method, resulting in an HTML injection vulnerability.

Affected products

Jenkins Project Jenkins Fortify Plugin: before 22.2.39 — fixed in 22.2.39

How to fix

Upgrade to a fixed version: Jenkins Project Jenkins Fortify Plugin 22.2.39. Check the vendor advisory for mitigations.

References

https://www.jenkins.io/security/advisory/2023-08-16/#SECURITY-3140
https://www.jenkins.io/security/advisory/2023-08-16/#SECURITY-3140

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