Website LLMs.txt Stored Cross-Site Scripting Vulnerability in WordPress

A stored cross-site scripting vulnerability has been identified in the Website LLMs.txt plugin for WordPress, affecting all versions through 8.2.6. The issue arises from inadequate input sanitization and output escaping, allowing authenticated attackers with administrator-level permissions to inject arbitrary scripts. This vulnerability is particularly concerning in multi-site installations where unfiltered HTML is disabled, as the injected scripts execute when users access the compromised pages.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the affected page.

Remediation

Users are advised to update the Website LLMs.txt plugin to version 8.2.7 or a newer patched version.