CVE-2026-4357criticalCWE-434

CVE-2026-4357: critical vulnerability in Embed HTML5 Game

Embed HTML5 Game <= 1.3 - Unauthenticated Arbitrary File Upload

Published

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48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 10epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
Unknown · Embed HTML5 Game
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