CVE-2026-13492 HIGH

CVE-2026-13492: UsersWP <= 1.2.65 - Authenticated (Subscriber+) Arbitrary File Deletion via File Upload Field

Vendor Stiofansisland
Product UsersWP – Front-end login form, User Registration, User Profile & Members Directory plugin for WP
Weakness CWE-22 · Path traversal
Published July 9, 2026
Last update July 9, 2026

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

The UsersWP plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.2.65. This is due to insufficient validation of file-field values in the UsersWP_Validation::validate_fields() function (which falls through to sanitize_text_field() for fields of type 'file', leaving directory-traversal sequences intact) combined with the UsersWP_Forms::upload_file_remove() AJAX handler building the deletion target from the uploads basedir concatenated with the attacker-controlled metadata value without any realpath canonicalization or uploads-directory boundary check before calling unlink(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the affected site's server, including wp-config.

Explanation of Vulnerability in Simple Terms

02Summary

UsersWP versions up to 1.2.65 contain a path traversal vulnerability that allows authenticated users to read, modify, or delete arbitrary files on the server. An attacker with a low-privilege account can bypass file access restrictions and access sensitive data outside the intended directory structure. This affects confidentiality, integrity, and availability of the site.

What an attacker can do

03Attacker Capabilities

Read, modify, or delete arbitrary files on the server outside the intended application directories.

Potential impact on your site

04Site Impact

Any registered user can access sensitive files, potentially exposing database credentials, configuration, or other users' data.

Conditions required to exploit

05Prerequisites

Attacker must have a valid low-privilege user account on the WordPress site.

Key dates

06Disclosure timeline

July 9, 2026 CVE published
July 9, 2026 Record updated

Related vulnerabilities

08Related CVE