What the vulnerability does
01Description
The URLYar URL Shortner plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'urlyar_shortlink' 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
URLYar URL Shortener versions 1.1.0 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability affects the application's scope, meaning injected code can impact other users and components. An attacker with low-level credentials can exploit this without user interaction to compromise site integrity and access sensitive information.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that executes in other users' browsers and affects other application components.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other users and site functionality; data theft and account compromise possible.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account; no user interaction required.
Key dates
06Disclosure timeline
October 15, 2025
CVE published
April 8, 2026
Record updated
