PT-2026-30316 · Properfraction · Paid Membership Plugin

Supakiad S · Published 2026-04-04 · Updated 2026-04-04 · CVE-2026-3445

Mitre

CVSS v3.1

7.1

High

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

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.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-3445

Affected Products

Paid Membership Plugin

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-3445 · Security Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3474509%40wp-user-avatar%2Ftrunk&old=3473639%40wp-user-avatar%2Ftrunk&sfp_email=&sfph_mail=#file3 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/ae1e198b-0c0d-47aa-8a56-ec4e790c8022?source=cve · Note