CVE-2025-13619 — Flex Store Users <= 1.1.0 - Unauthenticated Privilege Escalation
The Flex Store Users plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.1.0. This is due to the 'fsUserHandle::signup' and the 'f…
Published: 2025-12-20 · CVSS: 9.8 · CVSS 3.1
The Flex Store Users plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.1.0. This is due to the 'fsUserHandle::signup' and the 'fsSellerRole::add_role_seller' functions not restricting what user roles a user can register with. This makes it possible for unauthenticated attackers to supply the 'administrator' role during registration and gain administrator access to the site. Note: The vulnerability can be exploited with the 'fs_type' parameter if the Flex Store Seller plugin is also activated.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7