CVE-2023-28677: Jenkins Convert To Pipeline

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Jenkins Convert To Pipeline Plugin 1.0 and earlier uses basic string concatenation to convert Freestyle projects' Build Environment, Build Steps, and Post-build Actions to the equivalent Pipeline step invocations, allowing attackers able to configure Freestyle projects to prepare a crafted configuration that injects Pipeline script code into the (unsandboxed) Pipeline resulting from a convertion by Jenkins Convert To Pipeline Plugin.

Affected products

• Jenkins Convert To Pipeline: up to and including 1.0

Published 2023-04-02. Last modified 2026-06-17.