CVE-2023-29689

Deeper analysis

PyroCMS version 3.9 is affected by a remote code execution vulnerability that stems from a server-side template injection flaw. The issue permits an attacker to supply crafted template input that is processed by the server, resulting in execution of arbitrary commands on the underlying host. The vulnerability received a CVSS 3.1 base score of 9.8, reflecting network-accessible attack vector, low complexity, and no required privileges or user interaction.

An unauthenticated remote attacker can exploit the flaw by submitting malicious template expressions through exposed application endpoints. Successful exploitation grants the ability to run arbitrary code, potentially leading to full system compromise including data exfiltration, persistence, or lateral movement within the affected environment.

Public exploit code and detailed technical write-ups have been posted to Packet Storm and independent security blogs, indicating that working proof-of-concept material is readily available. The associated EPSS score has reached 0.6082, a level that reflects substantial real-world exploitation interest following disclosure. No official vendor advisory or patch information appears among the referenced sources.