Critical severity · published Oct 16, 2026
CVE-2026-111708
WhaTicket Community through commit cf04795 Admin Self-Registration via /auth/signup
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WH
whaticket-community · canove
through cf047955a6f0d07002ed89c67d765c28d06f8d52 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-111708
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111708
github.com
https://github.com/canove/whaticket-community
github.com
https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/controllers/UserController.ts#L29-L48
github.com
https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/services/UserServices/CreateUserService.ts#L23-L65
hackmd.io
https://hackmd.io/@hieuPenguinnn/whaticket-community-signup-eop-ticket-idor
www.vulncheck.com
https://www.vulncheck.com/advisories/whaticket-community-through-commit-cf04795-admin-self-registration-via-auth-signup
More from whaticket-community
5.4
CVE-2026-111709
WhaTicket Community through commit cf04795 IDOR via /tickets/:ticketId and /messages/:ticketId