---
id: CVE-2026-111708
title: >-
  WhaTicket Community through commit cf04795 contains an authentication bypass
  vulnerability that allows unauthenticated attackers to self-register as
  administrators via POST /auth/signup
summary: >-
  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 …
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-269
vendor: canove
product: whaticket-community
affected:
  - whaticket-community <= cf047955a6f0d07002ed89c67d765c28d06f8d52
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T20:17:22.847'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111708'
references:
  - url: 'https://github.com/canove/whaticket-community'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/controllers/UserController.ts#L29-L48
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/services/UserServices/CreateUserService.ts#L23-L65
    label: disclosure@vulncheck.com
  - url: >-
      https://hackmd.io/@hieuPenguinnn/whaticket-community-signup-eop-ticket-idor
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/whaticket-community-through-commit-cf04795-admin-self-registration-via-auth-signup
    label: disclosure@vulncheck.com
  - url: >-
      https://hackmd.io/@hieuPenguinnn/whaticket-community-signup-eop-ticket-idor
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00578
epssPercentile: 0.47399
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-10-16T19:45:23.016825Z'
ingestedAt: '2026-10-16T18:43:08.642Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.