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CVE-2024-13156: WordPress HTML5 Video Player Plugin allows attackers to inject malicious scripts via page headings.

CVE-2024-13156 · published 1 year ago

Summary

A security weakness in the WordPress HTML5 Video Player Plugin allows unauthorized users with admin-level access to inject malicious scripts into pages, which can be triggered when users visit those pages. This puts sensitive data and user accounts at risk of being compromised. Affected users should update the plugin to the latest version to prevent this issue.

Original advisory text

The HTML5 Video Player – mp4 Video Player Plugin and Block plugin for WordPress is vulnerable to DOM-Based Stored Cross-Site Scripting via the ‘heading’ parameter in all versions up to, and including, 2.5.35 due to insufficient input sanitization and output escaping. 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.

References

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker partial control

Severity

6.4 Medium

Exploitation

<1% chance of attack within 30 days

Type

CWE-79Cross-site Scripting (XSS)

Timeline

Published14 Jan 2025

Updated4 Nov 2026

First seen7 Mar 2026

Sources

CVE-2024-13156 · NVD

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