Attackers Exploit Issabel Framework Flaw Enabling Unauthenticated OS Command Execution

A critical security flaw in Issabel Framework, a web-based framework for the open-source unified communications PBX software, has come under active exploitation. The vulnerability in question is CVE-2026-89026 CVSS v3.1 score: 9.8/CVSS v4.0 score: 9.3, which can allow an unauthenticated remote...