ProfilePress <= 4.16.11 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary Subscription Cancellation/Expiration
| CVE | CVE-2026-3453 |
|---|---|
| CVSS | 8.1 (High) |
| Publicly Published | March 10, 2026 |
| Last Updated | March 11, 2026 |
| Researcher |
kai63001
|
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.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress
| Software Type | Plugin |
|---|---|
| Software Slug | wp-user-avatar (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 4.16.12, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress
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