CVE-2026-11371
Deferred Deferred - Pending Action

BetterDocs Plugin Prompt Injection via AI Summary

Publication date: 2026-07-16

Last updated on: 2026-07-16

Assigner: WPScan

Description
The BetterDocs WordPress plugin before 4.5.5 does not sanitise an AI-generated documentation summary before storing and outputting it, and the feature that generates it is exposed to unauthenticated users, allowing them to store a malicious payload via prompt injection that executes in the browser of any visitor who views the affected page, including administrators.

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Meta Information

Published
2026-07-16
Last Modified
2026-07-16
Generated
2026-08-05
AI Q&A
2026-07-16
EPSS Evaluated
2026-08-04
NVD
CVE-2026-11371
EUVD
EUVD-2026-44870

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wpbeaver betterdocs to 4.5.5 (exc)

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 BetterDocs WordPress plugin before version 4.5.5 has a stored cross-site scripting (XSS) vulnerability in its AI Doc Summarizer feature. An unauthenticated attacker can inject malicious scripts via prompt injection, which are stored and executed in the browser of any visitor viewing the affected page, including administrators.

Detection Guidance

Check if the BetterDocs plugin version is below 4.5.5. Inspect pages using the AI Doc Summarizer feature for unusual scripts or payloads. Review server logs for unauthorized POST requests to the AI summarizer endpoint.

Impact Analysis

This vulnerability allows attackers to execute malicious scripts in the browsers of users visiting the affected page. This could lead to theft of session cookies, account takeover, or unauthorized actions on behalf of users, including administrators.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR and HIPAA requirements for data protection and confidentiality. It may result in data breaches, non-compliance penalties, and reputational damage.

Mitigation Strategies

Update the BetterDocs plugin to version 4.5.5 or later immediately. Disable the AI Doc Summarizer feature if not needed. Remove any suspicious scripts or payloads from stored summaries.

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