FreePBX is an open source IP PBX. Prior to 16.0.47 and 17.0.30, the FreePBX Framework module permits a crafted backup to restore the hidden AUTHTYPE setting with the value none through runRestore() in amp_conf/htdocs/admin/libraries/Builtin/Restore.php. An authenticated user with sufficient backup-restore access or write access to backup files can thereby disable FreePBX authentication during restoration, bypassing the user-interface removal of AUTHTYPE=none. This issue is fixed in versions 16.0.47 and 17.0.30.
{
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73661.json",
"cwe_ids": [
"CWE-15"
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "16.0.47"
},
{
"introduced": "17.0.1"
},
{
"fixed": "17.0.30"
}
],
"source": [
"AFFECTED_FIELD",
"REFERENCES"
]
}