What is CVE-2023-39156?

CVE-2023-39156 is a medium-severity vulnerability in Jenkins Bazaar, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.3/10. Published 2023-07-26.

How severe is CVE-2023-39156?

Medium severity. CVSS v3 base score is 5.3 out of 10.

CSRF in Jenkins Bazaar

CVE-2023-39156

A cross-site request forgery (CSRF) vulnerability in Jenkins Bazaar Plugin 1.22 and earlier allows attackers to delete previously created Bazaar SCM tags.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2023-07-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Jenkins Bazaar
Jenkins Project Bazaar Plugin — versions 0

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

www.jenkins.io/security/advisory/2023-07-26/ (vendor-advisory, Vendor Advisory)
www.openwall.com/lists/oss-security/2023/07/26/2 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2023-39156?: CVE-2023-39156 is a medium-severity vulnerability in Jenkins Bazaar, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.3/10. Published 2023-07-26.
How severe is CVE-2023-39156?: Medium severity. CVSS v3 base score is 5.3 out of 10.