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Insufficiently sanitized data allows unauthenticated access to FreePBX Admin

We’re back - it’s a day, in a month, in a year - and once again, something has happened. In this week’s episode of “the Internet is made of string and there is literally no evidence to suggest otherwise”, we present even further evidence that as a species we made a fairly painful mistake when we discovered electricity - and it just got worse and worse. Today, inside this hellscape we call the Internet, a mean person has discovered a zero-day(s) in FreePBX (now lovingly called CVE-2025-57819).

FreePBX servers hacked via zero-day, emergency fix released

The Sangoma FreePBX Security Team is warning about an actively exploited FreePBX zero-day vulnerability that impacts systems with the Administrator Control Panel (ACP) is exposed to the internet. FreePBX is an open-source PBX (Private Branch Exchange) platform built on top of Asterisk, widely used by businesses, call centers, and service providers to manage voice communications, extensions, SIP trunks, and call routing. In an advisory posted to the FreePBX forums, the Sangoma FreePBX Security