CVE-2023-43336 Missing authorization in n/a
Attackers can bypass access controls in FreePBX CDR module by modifying parameters to view unauthorized call records.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-43336?
CVE-2023-43336 is a high-severity missing authorization vulnerability in Sangoma Freepbx, published on 2 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Sangoma Technologies FreePBX before cdr 15.0.18, 16.0.40, 15.0.16, and 16.0.17 was discovered to contain an access control issue via a modified parameter value, e.g., changing extension=self to extension=101.
Weakness: CWE-284
Which versions are affected by CVE-2023-43336?
It affects 1 product.
Products include Sangoma Freepbx.
How do I fix CVE-2023-43336?
No fix has been published for CVE-2023-43336 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2023-43336 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-43336 exists.
Other vulnerabilities in Sangoma Freepbx
- CVE-2025-57819 Sangoma FreePBX Authentication Bypass
- CVE-2019-19006 Sangoma FreePBX Improper Authentication
- CVE-2026-73663 FreePBX: Unauthenticated SQL injection in FreePBX missedcall via inbound Caller ID name leads to administrator takeover
- CVE-2026-73665 FreePBX UCP: Unauthenticated remote code execution via socket.io namespace auth bypass and AMI action injection
- CVE-2026-46376 FreePBX: Unauthenticated Use of Hard-Coded Credentials Vulnerability in FreePBX UCP Interface
Sources
Also known as GHSA-3g8h-47mp-4839.