CVE-2026-80071: unknown user registration & membership Improper Privilege Management

Vulnerability summary

CVE-2026-80071 is a high (CVSS 7.2) Improper Privilege Management vulnerability in unknown user registration & membership. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.6% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 5.2.8.

Timeline

1. 13-09-2026
   PublishedVulnerability first disclosed.
2. 13-09-2026
   Last modifiedVulnerability information updated.

Description

The User Registration & Membership WordPress plugin before 5.2.8 does not properly restrict who may author a membership plan or validate the plan a user attaches to their own account, allowing authenticated users with Author-level access and above to assign themselves an arbitrary role and escalate their privileges to Administrator.

• CWE-269Improper Privilege ManagementThe product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.