What the vulnerability does
01Description
The Website LLMs.txt plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 8.2.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
Website LLMs.txt versions 8.2.6 and earlier contain a cross-site scripting vulnerability in a high-privilege context. An attacker with administrative access can inject malicious scripts that affect other users or the broader site scope. The attack requires high access levels and specific conditions to exploit, but can compromise site integrity and user data confidentiality.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers or affect site functionality.
Potential impact on your site
04Site Impact
An admin account compromise could allow script injection affecting other users and site integrity.
Conditions required to exploit
05Prerequisites
Attacker must have high-level administrative privileges; no user interaction required.
Key dates
06Disclosure timeline
April 21, 2026
CVE published
April 21, 2026
Record updated
