{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/freepbx-security-reporting-userman-freepbx-16/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["FreePBX Security-Reporting userman (FreePBX 16)","FreePBX Security-Reporting userman (FreePBX 17)"],"_cs_severities":["critical"],"_cs_tags":["freepbx","hardcoded-credentials","voip"],"_cs_type":"advisory","_cs_vendors":["FreePBX"],"content_html":"\u003cp\u003eOn May 15, 2026, FreePBX published a security advisory addressing a critical vulnerability affecting the Security-Reporting userman module. This vulnerability impacts FreePBX 16 versions 16.0.45 and prior, and FreePBX 17 versions 17.0.7 and prior. The vulnerability stems from the use of hard-coded credentials within the User Control Panel (UCP) interface, allowing unauthenticated attackers to potentially gain unauthorized access to the system. Successful exploitation could lead to sensitive data exposure, configuration modification, or complete system compromise. This is a critical issue due to the widespread use of FreePBX in telecommunications infrastructure.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker identifies a vulnerable FreePBX instance with an exposed UCP interface.\u003c/li\u003e\n\u003cli\u003eAttacker accesses the UCP interface without authentication.\u003c/li\u003e\n\u003cli\u003eAttacker leverages the hard-coded credentials present in the vulnerable Security-Reporting userman module.\u003c/li\u003e\n\u003cli\u003eAttacker gains unauthorized access to user accounts and system settings.\u003c/li\u003e\n\u003cli\u003eAttacker modifies user permissions or creates new administrative accounts.\u003c/li\u003e\n\u003cli\u003eAttacker uses the elevated privileges to access sensitive call records and configuration files.\u003c/li\u003e\n\u003cli\u003eAttacker may install malicious modules to further compromise the system.\u003c/li\u003e\n\u003cli\u003eAttacker achieves full system compromise, potentially leading to eavesdropping on calls, denial-of-service, or further lateral movement within the network.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability could lead to complete compromise of the FreePBX system. This includes unauthorized access to call records, modification of system configuration, and the potential for eavesdropping on phone calls. Organizations relying on FreePBX for their telecommunications infrastructure are at risk of data breaches, service disruptions, and financial losses. Given the widespread use of FreePBX, a large number of organizations could be affected by this vulnerability.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImmediately upgrade FreePBX Security-Reporting userman module to versions later than 16.0.45 (FreePBX 16) and 17.0.7 (FreePBX 17) to remediate the hard-coded credentials vulnerability.\u003c/li\u003e\n\u003cli\u003eMonitor access logs for suspicious activity related to the UCP interface, looking for unauthenticated access attempts (reference: overview).\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to limit the exposure of the FreePBX system and UCP interface to internal networks only.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-15T19:27:24Z","date_published":"2026-05-15T19:27:24Z","id":"https://feed.craftedsignal.io/briefs/2026-05-freepbx-hardcoded-creds/","summary":"FreePBX Security-Reporting userman versions 16.0.45 and prior (FreePBX 16) and 17.0.7 and prior (FreePBX 17) contain a critical vulnerability due to unauthenticated use of hard-coded credentials in the UCP interface, potentially allowing unauthorized access.","title":"FreePBX Security-Reporting userman Unauthenticated Hard-Coded Credentials Vulnerability","url":"https://feed.craftedsignal.io/briefs/2026-05-freepbx-hardcoded-creds/"}],"language":"en","title":"CraftedSignal Threat Feed — FreePBX Security-Reporting Userman (FreePBX 16)","version":"https://jsonfeed.org/version/1.1"}