VULNERABILITY INTELLIGENCE
CVE-2026-4357
CVSS score10 CRITICAL
EPSS probability0.55%
CISA KEVNot currently listed
Published2026-09-02
Last modified2026-09-03
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Description
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.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-434