CVE-2026-11963
User Registration & Membership < 5.2.2 - Subscriber+ Cross-User Role and Membership Tier Modification via IDOR
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
The User Registration & Membership WordPress plugin before 5.2.2 does not perform an authorization check on a membership-upgrade action and derives the user to modify from a caller-supplied identifier instead of the current user, allowing any authenticated user such as a subscriber to change another user's WordPress role and membership tier.
| Vendor | unknown |
| Product | user registration & membership |
| Published | Jul 13, 2026 |
| Last Updated | Jul 13, 2026 |
Stay Ahead of the Next One
Get instant alerts for unknown user registration & membership
Be the first to know when new high vulnerabilities affecting unknown user registration & membership are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Unknown / User Registration & Membership
0 < 5.2.2
References
Credits
Revanth Hari Narayana Matte WPScan