The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to unauthorized membership payment bypass in all versions up to, and including, 4.16.11. This is due to a missing ownership verification on the `change_plan_sub_id` parameter in the `process_checkout()` function. This makes it possible for authenticated attackers, with subscriber level access and above, to reference another user's active subscription during checkout to manipulate proration calculations, allowing them to obtain paid lifetime membership plans without payment via the `ppress_process_checkout` AJAX action.

Project Subscriptions

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Advisories

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Fixes

Solution

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Workaround

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History

Sat, 04 Apr 2026 08:45:00 +0000

Type Values Removed Values Added
Description The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to unauthorized membership payment bypass in all versions up to, and including, 4.16.11. This is due to a missing ownership verification on the `change_plan_sub_id` parameter in the `process_checkout()` function. This makes it possible for authenticated attackers, with subscriber level access and above, to reference another user's active subscription during checkout to manipulate proration calculations, allowing them to obtain paid lifetime membership plans without payment via the `ppress_process_checkout` AJAX action.
Title Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress <= 4.16.11 - Missing Authorization to Authenticated (Subscriber+) Membership Payment Bypass
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-04T08:25:20.235Z

Reserved: 2026-03-02T15:39:16.791Z

Link: CVE-2026-3445

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-04T09:16:20.330

Modified: 2026-04-04T09:16:20.330

Link: CVE-2026-3445

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses