Description
In Jenkins Email Extension Plugin 2.93 and earlier, templates defined inside a folder were not subject to Script Security protection, allowing attackers able to define email templates in folders to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.
Remediation
References
http://www.openwall.com/lists/oss-security/2023/02/15/4
https://www.jenkins.io/security/advisory/2023-02-15/#SECURITY-2939
Related Vulnerabilities
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CVE-2020-28278 Vulnerability in maven package org.webjars.npm:shvl