CVE-2021-43405 is an improper input validation vulnerability impacting FusionPBX versions 4.5.29 and earlier. An exploit was observed in open source and a link to an exploit was shared in the underground.
PoC Links(if available):
Exploit DB link –
Known Counter Measures:
FusionPBX addressed the vulnerability in a GitHub software development platform saved commit change with a patch.
Links to patches(if available)