CVE-2026-46512 Frogman: Dialplan template parameters interpolated into extensions_custom.conf without escaping
An attacker with write permissions can inject arbitrary Asterisk directives into configuration files, leading to remote code execution.
- 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-2026-46512?
CVE-2026-46512 is a critical code injection vulnerability in mwtcmi frogman, published on 16 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Frogman provides headless PBX control through MCP and HTTP API. Prior to 1.6.2, fm_dialplan_apply accepted template parameters including greeting, dest, url, extension, code, and file, and Tools/DialplanApply.php wrote Dialplan/Templates.php output to extensions_custom.conf while only Dialplan/TemplateBase.php:38-42 sanitized contextName(), allowing a PERM_WRITE caller using confirm:true to inject arbitrary Asterisk directives such as System(), Set(SHELL(...)), Goto, or Macro. This issue is fixed in version 1.6.2.
Weakness: CWE-94
Which versions are affected by CVE-2026-46512?
How do I fix CVE-2026-46512?
No fix has been published for CVE-2026-46512 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-46512 being exploited?
There is no known exploitation of CVE-2026-46512 in the wild and no public exploit code.
Sources
Also known as GHSA-pxfc-q72v-jh8m.