CVE Catalog

CVE-2026-4357

CriticalCVSS 10.0
Published: Translated: NVD NIST

Summary

The Embed HTML5 Game WordPress plugin through 1.3 does not properly restrict who can upload files, making it possible for unauthenticated attackers to upload PHP backdoors on affected sites.

Risk Assessment

The risk is critical because unauthenticated attackers can upload malicious files, potentially leading to full site compromise and data breach.

Recommendation

Update the Embed HTML5 Game plugin to a version newer than 1.3 if available, or remove it entirely if not essential.

Related vulnerabilities

Original NVD description (English source)

The Embed HTML5 Game WordPress plugin through 1.3 does not properly restrict who can upload files via the plugin, as well as what can be uploaded, making it possible for unauthenticated attackers to upload PHP backdoors on affected sites.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS