Pipeline: Supporting APIs Plugin provides a feature to add hyperlinks, that send POST requests when clicked, to build logs. These links are used by Pipeline: Input Step Plugin to allow users to proceed or abort the build, or by Pipeline: Job Plugin to allow users to forcibly terminate the build after aborting it.

Pipeline: Supporting APIs Plugin 838.va_3a_087b_4055b and earlier does not sanitize or properly encode URLs of these hyperlinks in build logs.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create Pipelines.

Pipeline: Supporting APIs Plugin 839.v35e2736cfd5c properly encodes URLs of these hyperlinks in build logs.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-43409
• https://www.jenkins.io/security/advisory/2022-10-19/#SECURITY-2881
• http://www.openwall.com/lists/oss-security/2022/10/19/3
• jenkinsci/workflow-support-plugin@35e2736