CVE-2023-35141

Severity: high (CVSS 8.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-14 · updated 2026-06-17
Weakness: CWE-352

Description

In Jenkins 2.399 and earlier, LTS 2.387.3 and earlier, POST requests are sent in order to load the list of context actions. If part of the URL includes insufficiently escaped user-provided values, a victim may be tricked into sending a POST request to an unexpected endpoint by opening a context menu.

Affected products

Jenkins: before 2.400; before 2.401.1 — fixed in 2.400, 2.401.1

How to fix

Upgrade to a fixed version: Jenkins 2.400, 2.401.1. Check the vendor advisory for mitigations.

References

http://www.openwall.com/lists/oss-security/2023/06/14/5
https://www.jenkins.io/security/advisory/2023-06-14/#SECURITY-3135
http://www.openwall.com/lists/oss-security/2023/06/14/5
https://www.jenkins.io/security/advisory/2023-06-14/#SECURITY-3135

Get alerted when CVE-2023-35141 or the next vulnerability affects your stack