CVE-2026-116520

The PPWP – Password Protect Pages plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment / shortcode attribute desc_below_form (and placeholder as the marker-smuggling helper)' parameter in all versions up to, and including, 1.9.26 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable by unauthenticated attackers because WordPress's comment_content filter leaves bare shortcode text (containing no HTML tags) untouched, and the comment_whitelist setting auto-approves subsequent comments from a previously approved name and email without administrator intervention.

• CWE-79

• https://plugins.trac.wordpress.org/browser/password-protect-page/tags/1.9.26/includes/services/class-ppw-shortcode.php#L202
• https://plugins.trac.wordpress.org/browser/password-protect-page/tags/1.9.26/includes/services/class-ppw-shortcode.php#L587
• https://plugins.trac.wordpress.org/browser/password-protect-page/tags/1.9.26/includes/services/class-ppw-shortcode.php#L598
• https://plugins.trac.wordpress.org/browser/password-protect-page/tags/1.9.26/includes/services/class-ppw-shortcode.php#L608
• https://plugins.trac.wordpress.org/browser/password-protect-page/tags/1.9.26/includes/services/class-ppw-shortcode.php#L622
• https://plugins.trac.wordpress.org/browser/password-protect-page/tags/1.9.26/includes/views/shortcode/view-ppw-restriced-content-form.php#L17
• https://plugins.trac.wordpress.org/changeset/3772960/password-protect-page/trunk/includes/services/class-ppw-shortcode.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/c549ba14-276e-46ab-8019-97430a566d8c?source=cve

Published

Oct 31, 2026

Last Modified

Nov 2, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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