HTML5 Video Player WordPress Plugin DOM-Based Stored Cross-Site Scripting Vulnerability

A DOM-Based Stored Cross-Site Scripting vulnerability has been identified in the HTML5 Video Player – mp4 Video Player Plugin and Block for WordPress. This issue affects all versions through 2.5.35 and arises from inadequate input sanitization and output escaping. The vulnerability allows authenticated attackers with Contributor-level access or higher to inject arbitrary web scripts into pages, which are executed when users access the compromised pages.

Impact

Exploitation of this vulnerability allows for DOM-Based Stored Cross-Site Scripting, where injected scripts are executed in the context of the user viewing the affected page.

Remediation

Users can update to version 2.5.36 or a newer patched version to address this vulnerability.