CVE-2026-3453 | BDVDB-2026-319832 Detail
properfractionPaid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress
Description#
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() function. The ppress_process_checkout AJAX handler accepts a user-controlled subscription ID intended for plan upgrades, loads the subscription record, and cancels/expires it without verifying the subscription belongs to the requesting user. This makes it possible for authenticated attackers, with Subscriber-level access and above, to cancel and expire any other user's active subscription via the change_plan_sub_id parameter during checkout, causing immediate loss of paid access for victims.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
- CWE-639 Authorization Bypass Through User-Controlled Key
References#
- https://www.wordfence.com/threat-intel/vulnerabilities/id/74e4808f-bd6f-4e62-91cb-31c86a427498?source=cve
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Controllers/CheckoutController.php#L237
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Controllers/CheckoutController.php#L334
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Controllers/CheckoutController.php#L342
- https://plugins.trac.wordpress.org/changeset/3474509/wp-user-avatar/trunk/src/Membership/Controllers/CheckoutController.php
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.