CVE-2026-42167: ProFTPD mod_sql RCE and How to Analyze the Exploit-DB PoC

A public exploit for CVE-2026-42167, a ProFTPD mod_sql vulnerability, is now available on Exploit-DB. The vulnerability has a CVSS v3.1 score of 8.1, and Exploit-DB published EDB-ID 52658 on August 25, 2026. But the interesting part isn't simply that a working PoC exists. The real question is: What does this exploit actually tell us about a...