CVE-2025-13619
Flex Store Users <= 1.1.0 - Unauthenticated Privilege Escalation
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-269 |
| Vendor | cmssuperheroes |
| Product | flex store users |
| Published | Dec 20, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
CMSSuperHeroes / Flex Store Users
0 ≤ 1.1.0
References
Credits
Ismail Syaleh