What’s Vulnerable › Vulnerabilities
CVE-2026-16736: User Registration & Membership < 5.2.6 - Unauthenticated Account Creation While Registration Disabled
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-05 · updated 2026-08-26
- Weakness: CWE-284
Description
The User Registration & Membership WordPress plugin before 5.2.6 does not enforce the site's registration-disabled setting when processing registration-form submissions, allowing unauthenticated users to create new accounts even when the administrator has turned off open registration.
Affected products
- User Registration & Membership: before 5.2.6 — fixed in 5.2.6
How to fix
Upgrade to a fixed version: User Registration & Membership 5.2.6. Check the vendor advisory for mitigations.
References
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