9.1
Critical
CVE-2026-11964 The User Registration & Membership WordPress plugin before 5.2.2 does not verify the authenticity of incoming…
Description
The User Registration & Membership WordPress plugin before 5.2.2 does not verify the authenticity of incoming payment-provider webhook notifications before acting on them, allowing unauthenticated attackers to forge a payment-approved event and activate a paid membership subscription without completing a real payment.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| User Registration & Membership 5.2 | earliest → < 5.2.2 | 5.2.2 |
Other CVEs of User Registration & Membership
The 14 CVEs of User Registration & Membership →
CVE-2026-80072
The User Registration & Membership WordPress plugin before 5.2.8 does not validate the destination of a post-login…
4.7
Medium
CVE-2026-86406
The User Registration & Membership WordPress plugin before 5.2.8 does not check the capability of the user making a…
7.5
High
CVE-2026-86407
The User Registration & Membership WordPress plugin before 5.2.8 does not verify that the visitor requesting its…
3.7
Low
CVE-2026-80071
The User Registration & Membership WordPress plugin before 5.2.8 does not properly restrict who may author a membership…
7.2
High