CVE-2023-43495

Name: CVE-2023-43495
Creator: NVD / NIST
Published: 2023-09-20T17:15:11.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.88%

Last modified Jun 17, 2026

CVE-2023-43495 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Jenkins 2.423 and earlier, LTS 2.414.1 and earlier does not escape the value of the 'caption' constructor parameter of 'ExpandableDetailsNote', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control this parameter.. EPSS estimates a 0.88% chance of exploitation in the next 30 days.

Description

Jenkins 2.423 and earlier, LTS 2.414.1 and earlier does not escape the value of the 'caption' constructor parameter of 'ExpandableDetailsNote', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control this parameter.

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

0.88%

54.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Jenkins	Jenkins	< 2.414.2
Jenkins	Jenkins	< 2.424

References

http://www.openwall.com/lists/oss-security/2023/09/20/5Mailing List, Third Party Advisory
https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3245Vendor Advisory
http://www.openwall.com/lists/oss-security/2023/09/20/5Mailing List, Third Party Advisory
https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3245Vendor Advisory

Timeline

Published: Sep 20, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-43495?

How severe is CVE-2023-43495?

CVE-2023-43495 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.88% probability of exploitation in the next 30 days.

How do I fix CVE-2023-43495?

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-2023-43495?

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

Scan your code now

Source: NVD / NIST