What the vulnerability does
01Description
The Common Ninja: Fully Customizable & Perfectly Responsive Free Widgets for WordPress Websites plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'commonninja' shortcode in all versions up to, and including, 1.1.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-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
Common Ninja plugin versions up to 1.1.0 contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site visitors, potentially compromising their sessions or stealing data. The vulnerability affects the site's scope, meaning the injected code can impact multiple users and components.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers when they view affected pages.
Potential impact on your site
04Site Impact
Visitors' sessions and data may be compromised; malicious scripts can steal credentials or redirect users.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
January 7, 2025
CVE published
April 8, 2026
Record updated
