CVE-2026-3639
Received Received - Intake

Stored XSS in PPWP Password Protect Pages WordPress Plugin

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: Wordfence

Description
The PPWP – Password Protect Pages plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `ppwp` shortcode attributes in all versions up to, and including, 1.9.21 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.

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Meta Information

Published
2026-08-13
Last Modified
2026-08-13
Generated
2026-08-13
AI Q&A
2026-08-13
EPSS Evaluated
N/A
NVD
CVE-2026-3639
EUVD
EUVD-2026-57741

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ppwp password_protect_pages to 1.9.21 (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 PPWP – Password Protect Pages WordPress plugin up to version 1.9.21 has a stored cross-site scripting vulnerability. It allows authenticated attackers with contributor access or higher to inject malicious scripts via the plugin's shortcode attributes due to insufficient input sanitization and output escaping.

Detection Guidance

To detect this vulnerability, inspect WordPress sites using the PPWP plugin versions up to 1.9.21. Check for suspicious shortcode attributes in pages or posts that may contain malicious scripts. Review user roles with contributor access or higher for unusual activity.

Impact Analysis

This vulnerability allows attackers to inject malicious scripts into WordPress pages. When users access these pages, the scripts execute, potentially stealing user data, session tokens, or performing actions on behalf of the user without their knowledge.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data protection requirements and HIPAA's security rules for protected health information. It may result in legal penalties, loss of trust, and compliance failures.

Mitigation Strategies

Update the PPWP plugin to the latest version immediately. Remove any unauthorized scripts from pages or posts. Restrict contributor-level access to trusted users only. Monitor for signs of exploitation such as unexpected scripts or unauthorized page edits.

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