CVE-2026-46376

critical · 9.3

FreePBX is an open source IP PBX. From 15.0.42 to before 16.0.45 and 17.0.7, unauthenticated users may be able to access the User Control Panel (UCP) using hard-coded initial template credentials if these were not immediately changed by the Administrator who enabled UCP. Authenticated access to ACP is required for the initial setup of UCP generic templates, but after that, without further steps by the admin, unauthenticated users may be able to gain access. This vulnerability is fixed in 16.0.45 and 17.0.7.

9.3

CVSS

0.4%

EPSS (exploit prob.)

36th

EPSS percentile

2026-05-29

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-798

Affected products

Vendor	Product	Affected versions
sangoma	freepbx	< 16.0.45
sangoma	freepbx	>= 17.0, < 17.0.7

Check a specific version with /api/v1/cve/match.

References

https://github.com/FreePBX/security-reporting/security/advisories/GHSA-m55x-h47x-v3gx

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-46376