What is CVE-2023-43495?

CVE-2023-43495 is a medium-severity vulnerability in Jenkins, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-09-20.

How severe is CVE-2023-43495?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Jenkins

CVE-2023-43495

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (55.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Jenkins
Jenkins Project — versions 2.424, 2.414.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

jenkinsci-cert@googlegroups.com (vendor-advisory, Vendor Advisory)
jenkinsci-cert@googlegroups.com (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2023-43495?: CVE-2023-43495 is a medium-severity vulnerability in Jenkins, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-09-20.
How severe is CVE-2023-43495?: Medium severity. CVSS v3 base score is 5.4 out of 10.