CVE-2020-2231

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-08-12 · updated 2026-06-17
Weakness: CWE-79

Description

Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the remote address of the host starting a build via 'Trigger builds remotely', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission or knowledge of the Authentication Token.

Affected products

Jenkins: through 2.235.3; through 2.251

References

http://packetstormsecurity.com/files/160616/Jenkins-2.251-LTS-2.235.3-Cross-Site-Scripting.html
http://www.openwall.com/lists/oss-security/2020/08/12/4
https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1960
http://packetstormsecurity.com/files/160616/Jenkins-2.251-LTS-2.235.3-Cross-Site-Scripting.html
http://www.openwall.com/lists/oss-security/2020/08/12/4
https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1960

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