What’s Vulnerable › Vulnerabilities

CVE-2024-13156: HTML5 Video Player – mp4 Video Player Plugin and Block <= 2.5.35 - Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via heading Parameter

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-01-14 · updated 2026-06-17
• Weakness: CWE-79

Description

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.

Affected products

• bplugins HTML5 Video Player – Embed and Play Videos in Custom Player: through 2.5.35

References

• https://plugins.trac.wordpress.org/browser/html5-video-player/trunk/dist/frontend.js
• https://plugins.trac.wordpress.org/changeset/3221089/
• https://wordpress.org/plugins/html5-video-player/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/e0b26af2-d559-49bf-841a-1974360b3ad6?source=cve

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