What the vulnerability does
01Description
The Subpage List plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'subpages' shortcode in all versions up to, and including, 1.3.3 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
Subpage List versions 1.3.3 and earlier contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts. The vulnerability affects the scope beyond the vulnerable component, potentially impacting other users and site functionality. Low-privileged accounts can exploit this without user interaction to read or modify sensitive data.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers and modify site content.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors and site data integrity.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privileged user account on the site.
Key dates
06Disclosure timeline
May 3, 2025
CVE published
April 8, 2026
Record updated