CVE-2026-18501 MEDIUM

CVE-2026-18501: UsersWP <= 1.2.69 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Badge Widget Variable Substitution

Vendor Stiofansisland
Product UsersWP – Front-end login form, User Registration, User Profile & Members Directory plugin for WP
Weakness CWE-79 · XSS
Published August 6, 2026
Last update August 6, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The UsersWP – Front-end login form, User Registration, User Profile & Members Directory plugin for WP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Badge Widget Variable Substitution in all versions up to, and including, 1.2.69 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Explanation of Vulnerability in Simple Terms

02Summary

UsersWP versions up to 1.2.69 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts affecting other users across the site. An attacker with a low-privilege account can craft input that executes in other users' browsers, potentially stealing session data or performing actions on their behalf. The vulnerability has site-wide scope due to how the plugin processes user-supplied data.

What an attacker can do

03Attacker Capabilities

Inject JavaScript code that runs in other users' browsers and affects site functionality.

Potential impact on your site

04Site Impact

Any registered user can inject malicious scripts affecting other members; session hijacking and unauthorized actions are possible.

Conditions required to exploit

05Prerequisites

Attacker must have a registered account on the site (low-privilege user login required).

Key dates

06Disclosure timeline

August 6, 2026 CVE published
August 6, 2026 Record updated

Related vulnerabilities

08Related CVE