CVE-2024-3521: Byzoro Smart s80

Medium severity, CVSS 4.7. EPSS: 1.2% chance of exploitation in the next 30 days.

A vulnerability was found in Byzoro Smart S80 Management Platform up to 20240317. It has been rated as critical. Affected by this issue is some unknown functionality of the file /useratte/userattestation.php. The manipulation of the argument web_img leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-259892. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Byzoro Smart s80: before 20240317 (fixed in 20240317)
• Byzoro Smart s80 Management Platform: version 20240317 only

Published 2024-04-09. Last modified 2026-06-17.