Description
PyroCMS 3.9 contains a remote code execution (RCE) vulnerability that can be exploited through a server-side template injection (SSTI) flaw. This vulnerability allows a malicious attacker to send customized commands to the server and execute arbitrary code on the affected system.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Pyro CMS 3.9 - Server-Side Template Injection (SSTI) (Authenticated) EDB-51669 · webapps · Aug 8, 2023
GitHub 1 repository
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YSaxon/pyrocms-ssti-fix ★ 0 · Jan 9, 2026
A drop-in fix for CVE-2023-29689 - SSTI in PyroCMS, via a custom Twig Sandbox implementation
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | pyrocms/pyrocms | <= 3.9 | — | GHSA-w7vm-4v3j-vgpw |