CVE-2021-21684

Description

Jenkins Git Plugin 4.8.2 and earlier does not escape the Git SHA-1 checksum parameters provided to commit notifications when displaying them in a build cause, resulting in a stored cross-site scripting (XSS) vulnerability.

Affected products

• Jenkins Project / Jenkins Git Pluginunspecified – 4.8.2
• Jenkins Project / Jenkins Git Plugin4.7.1.1 – 4.7.1.1
• Jenkins Project / Jenkins Git Plugin4.3.1 – 4.3.1

References

• MISChttps://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2499
• MAILING_LISThttp://www.openwall.com/lists/oss-security/2021/10/06/1