CVE-2023-28677
CWE-77Published: April 2, 2023· Updated: Jun 17, 2026
Official Description
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.
Risk Analysis
The Jenkins Convert To Pipeline Plugin is vulnerable to code injection, allowing attackers to execute arbitrary Pipeline scripts. This critical flaw arises from insecure string concatenation during project conversion.
No public exploit is known, but the vulnerability is remotely exploitable.
Update the plugin to the latest version and review existing Freestyle project configurations.
Technical Analysis
CVE-2023-28677 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-77)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-28677 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts