FreePBX: Unauthenticated Use of Hard-Coded Credentials Vulnerability in FreePBX UCP Interface
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 0.4%
from disclosure to weapon0 days
Published on NVDMay 29
1st PoCMay 29
exploitation probability
0.4%top 65% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
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
Affected products
FreePBX · security-reportingpublic PoCs found — 1
githubgithub.com/portbuster1337/CVE-2026-46376★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.