CVE-2025-15691 WPFunnels < 3.13.0 - Unauthenticated User Registration via Opt-in Forms
Unauthenticated attackers can create WordPress user accounts via opt-in forms even when site registration is disabled, bypassing intended access controls.
- 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-2025-15691?
CVE-2025-15691 is a medium-severity missing authorization vulnerability in Unknown WPFunnels, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The WPFunnels WordPress plugin before 3.13.0 does not check whether user registration is enabled on the site before creating accounts from opt-in form submissions, relying on a value supplied in the request instead, allowing unauthenticated attackers to create WordPress user accounts even when registration is disabled.
This is an incomplete fix for CVE-2025-12353: the check added in 3.6.3 covers only one of the three registration paths.
Weakness: CWE-863
Which versions are affected by CVE-2025-15691?
How do I fix CVE-2025-15691?
No fix has been published for CVE-2025-15691 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-2025-15691 being exploited?
There is no known exploitation of CVE-2025-15691 in the wild and no public exploit code.
Sources
Also known as GHSA-23pq-j2qq-jh57.