Vulnerability · Published Jul 17, 2026 · Assigned by WPScan
CVE-2026-11966User Registration & Membership < 5.2.3 - Unauthenticated Limited User Deletion via Stripe Subscription Handler
Medium 5.3
In plain English
A medium-severity authorization bypass via user-controlled key in User Registration & Membership from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 76.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
The User Registration & Membership WordPress plugin before 5.2.3 does not perform a capability check for unauthenticated callers on one of its membership payment actions and acts on a caller-supplied user identifier, allowing unauthenticated attackers to delete recently-registered, payment-pending user accounts.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | User Registration & Membership | 4.2.3 – before 5.2.3 |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://wpscan.com/vulnerability/8e3be064-b3b7-4d68-960b-8c850c3e6f77/ exploit, vdb-entry, technical-description