CVE-2026-13171 Eventin < 4.1.20 - Unauthenticated Account Creation via Waiting List Endpoint
Unauthenticated attackers can create arbitrary WordPress user accounts and inject order records via the waiting list endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13171?
CVE-2026-13171 is a high-severity missing authorization vulnerability in Unknown Eventin, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Eventin WordPress plugin before 4.1.20 does not perform an authorization check on its waiting-list registration handler, allowing unauthenticated users to create WordPress user accounts for arbitrary email addresses and inject order records.
Weakness: CWE-284
Which versions are affected by CVE-2026-13171?
How do I fix CVE-2026-13171?
No fix has been published for CVE-2026-13171 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-13171 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13171 exists.
Sources
Also known as GHSA-cj36-48gw-w6x2.