CVE-2026-86406User Registration & Membership < 5.2.8 - Subscriber+ Privilege Escalation via Membership Purchase
Updated under an hour ago ()
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It affects Unknown User Registration & Membership. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The User Registration & Membership WordPress plugin before 5.2.8 does not check the capability of the user making a membership purchase, and does not validate the payment method or the plan submitted with it, allowing any authenticated user such as a subscriber to be granted the WordPress role attached to a paid plan without paying for it. Where the site owner has mapped a plan to a privileged role, this leads to privilege escalation up to administrator.
- CVSS
- 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-269
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Sep 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown User Registration & Membership unknown:user_registration_and_membership (from the name) | from 4.4.6 before 5.2.8 | CNA record |
References
- https://wpscan.com/vulnerability/0fb4ec40-3f92-4c7e-8877-8898b355d78d/exploit, vdb-entry, technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.