Auth bypass in Properfraction Paid Membership Plugin, Ecommerce, User Registration Form, Login Profile & Restrict Content – Profilepress
CVE-2026-3453
The ProfilePress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.16.11. This is due to missing ownership validation on the change_plan_sub_id parameter in the process_checkout(…
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.001 (19.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/74e4808f-bd6f-4e62-91cb-31c86…
- plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Co…
- plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Co…
- plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Co…
- plugins.trac.wordpress.org/changeset/3474509/wp-user-avatar/trunk/src/Membershi…
Frequently asked questions
- What is CVE-2026-3453?
- CVE-2026-3453 is a high-severity vulnerability in Properfraction Paid Membership Plugin, Ecommerce, User Registration Form, Login Profile & Restrict Content – Profilepress, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.1/10. Published 2026-03-11.
- How severe is CVE-2026-3453?
- High severity. CVSS v3 base score is 8.1 out of 10.