---
cve: "CVE-2026-111708"
severity: "CRITICAL"
cvss: 9.3
epss: "0.6%"
vendor: "canove"
kev: false
exploited: false
published: "2026-10-16 18:17:54"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-11-09T18:39:47+01:00"
---

# CVE-2026-111708

> 9.3 CRITICAL · 🧪 PoC

## Beschreibung

WhaTicket Community through commit cf04795 contains an authentication bypass vulnerability that allows unauthenticated attackers to self-register as administrators via POST /auth/signup. Attackers can omit the profile field or set it to admin, gaining user management, settings, and access to all tickets, contacts, messages, and WhatsApp connections.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-10-16 19:45:36
- CNA-CVSS: **9.3** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-269** — Improper Privilege Management
  The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

## Angriffsmuster (CAPEC)

- [CAPEC-58 — Restful Privilege Elevation](https://capec.mitre.org/data/definitions/58.html) _(Severity: High)_
- [CAPEC-122 — Privilege Abuse](https://capec.mitre.org/data/definitions/122.html) _(Severity: Medium)_
- [CAPEC-233 — Privilege Escalation](https://capec.mitre.org/data/definitions/233.html)

## ATT&CK-Techniken

- [T1548 — Abuse Elevation Control Mechanism](https://attack.mitre.org/techniques/T1548/)

## Referenzen

- <https://hackmd.io/@hieuPenguinnn/whaticket-community-signup-eop-ticket-idor>
- <https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/services/UserServices/CreateUserService.ts#L23-L65>
- <https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/controllers/UserController.ts#L29-L48>
- <https://github.com/canove/whaticket-community>
- <https://www.vulncheck.com/advisories/whaticket-community-through-commit-cf04795-admin-self-registration-via-auth-signup>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-111708/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_