CVE-2023-25764

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-02-15 · updated 2026-06-17
Weakness: CWE-79

Description

Jenkins Email Extension Plugin 2.93 and earlier does not escape, sanitize, or sandbox rendered email template output or log output generated during template rendering, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create or change custom email templates.

Affected products

Jenkins Project Jenkins Email Extension Plugin: before 2.93.1 — fixed in 2.93.1

How to fix

Upgrade to a fixed version: Jenkins Project Jenkins Email Extension Plugin 2.93.1. Check the vendor advisory for mitigations.

References

http://www.openwall.com/lists/oss-security/2023/02/15/4
https://www.jenkins.io/security/advisory/2023-02-15/#SECURITY-2934
http://www.openwall.com/lists/oss-security/2023/02/15/4
https://www.jenkins.io/security/advisory/2023-02-15/#SECURITY-2934

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