EUVD-2026-70038
GHSA-j479-42pv-8r66
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Unauthenticated remote upload yields webshell RCE on the same host (S:U rather than S:C), giving full C/I/A impact; assessed 9.8 vs the input's 10.0.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
3DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
Unrestricted file upload in the Embed HTML5 Game WordPress plugin (versions through 1.3) lets unauthenticated attackers upload arbitrary files - including PHP scripts - because the plugin neither restricts who may upload nor validates file type, enabling planting of PHP backdoors and full remote code execution. WPScan reports the flaw with a publicly available exploit, and the CVSS 10.0 rating reflects unauthenticated network exploitation with complete impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires only that the Embed HTML5 Game plugin (version ≤1.3) is installed and active on a reachable WordPress site; per CVSS AV:N/AC:L/PR:N/UI:N there is no authentication, no user interaction, and no special configuration needed against a default install. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority issue rather than an inflated CVSS score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No fixed version is identified in the available data - the plugin is described as vulnerable 'through 1.3' with no patched release cited, so treat this as no vendor-released patch confirmed at time of analysis; consult the WPScan advisory (https://wpscan.com/vulnerability/b364969d-9dac-46ce-83e2-fc0fc2e5f698/) for update status. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: conduct a complete scan of all WordPress installations to identify those running Embed HTML5 Game plugin version 1.3 or earlier, immediately deactivate and permanently delete the plugin, and update WordPress to the latest stable release. …
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Same technique File Upload
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External POC / Exploit Code
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