CVE-2026-6711
Received Received - Intake

Reflected XSS in WordPress LLMs.txt Plugin Allows Admin Attack

Publication date: 2026-04-21

Last updated on: 2026-04-21

Assigner: Wordfence

Description
The Website LLMs.txt plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tab' parameter in all versions up to, and including, 8.2.6. This is due to the use of filter_input() without a sanitization filter and insufficient output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick an administrator into performing an action such as clicking on a link.

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Meta Information

Published
2026-04-21
Last Modified
2026-04-21
Generated
2026-07-06
AI Q&A
2026-04-21
EPSS Evaluated
2026-07-05
NVD
CVE-2026-6711
EUVD
EUVD-2026-24071

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
website_llms plugin to 8.2.6 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

The Website LLMs.txt plugin for WordPress has a Reflected Cross-Site Scripting (XSS) vulnerability in the 'tab' parameter in all versions up to and including 8.2.6.

This vulnerability arises because the plugin uses filter_input() without applying a sanitization filter and does not properly escape output.

As a result, unauthenticated attackers can inject arbitrary web scripts into pages that will execute if an administrator is tricked into clicking a malicious link.

Impact Analysis

This vulnerability can allow attackers to execute arbitrary scripts in the context of the affected website.

If an administrator is tricked into clicking a malicious link, the injected scripts can run with their privileges, potentially leading to unauthorized actions or data exposure.

The CVSS score of 6.1 indicates a medium severity impact, with potential confidentiality and integrity loss but no impact on availability.

Compliance Impact

The vulnerability allows unauthenticated attackers to inject arbitrary web scripts that execute when an administrator interacts with a crafted link. This reflected cross-site scripting (XSS) flaw can lead to unauthorized access or manipulation of administrative functions.

Such unauthorized script execution can potentially lead to data breaches or unauthorized access to sensitive information, which may impact compliance with regulations like GDPR and HIPAA that require protection of personal and health data.

However, the provided information does not explicitly detail the direct impact on compliance with these standards.

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