---
cve: "CVE-2026-73661"
severity: "HIGH"
cvss: 8.6
epss: "0.3%"
vendor: "FreePBX"
kev: false
exploited: false
published: "2026-08-13 21:25:26"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T16:08:38+02:00"
---

# CVE-2026-73661

> 8.6 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 0ca4ed2f59f087fd1c45485d09d7e499900563c2 (Commit)
- ad8fe16afe2607e0d16b2d4a8785f151001c38e9 (Commit)

## Referenzen

- <https://github.com/FreePBX/security-reporting/security/advisories/GHSA-f6hc-rqxg-ch86>
- <https://github.com/FreePBX/framework/commit/0591581654bc269df05cbb7093645d6934d4d861>
- <https://github.com/FreePBX/framework/commit/ea684be89abb393d1aff7f979d5fd751ff338dfd>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-73661) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_