CVE-2020-2231

Name: CVE-2020-2231
Creator: NVD / NIST
Published: 2020-08-12T14:15:13.267+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 5.30%

Last modified Jun 17, 2026

CVE-2020-2231 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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.. EPSS estimates a 5.30% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

5.30%

91.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Jenkins	Jenkins	<= 2.235.3
Jenkins	Jenkins	<= 2.251

References

http://packetstormsecurity.com/files/160616/Jenkins-2.251-LTS-2.235.3-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2020/08/12/4Mailing List, Third Party Advisory
https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1960Vendor Advisory
http://packetstormsecurity.com/files/160616/Jenkins-2.251-LTS-2.235.3-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
http://www.openwall.com/lists/oss-security/2020/08/12/4Mailing List, Third Party Advisory
https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1960Vendor Advisory

Timeline

Published: Aug 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-2231?

How severe is CVE-2020-2231?

CVE-2020-2231 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 5.30% probability of exploitation in the next 30 days.

How do I fix CVE-2020-2231?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-2231?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST