CVE-2023-4739

MEDIUM

Byzoro Smart S85f Firmware < 20230820 - Unrestricted File Upload

Title source: rule

Description

A vulnerability, which was classified as critical, has been found in Byzoro Smart S85F Management Platform up to 20230820. Affected by this issue is some unknown functionality of the file /sysmanage/updateos.php. The manipulation of the argument 1_file_upload 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-238628. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

References (4)

Core 4

Core References

Permissions Required, Third Party Advisory, VDB Entry vdb-entry technical-description

https://vuldb.com/?id.238628

Permissions Required, Third Party Advisory, VDB Entry signature permissions-required

https://vuldb.com/?ctiid.238628

Permissions Required, VDB Entry third-party-advisory

https://vuldb.com/?submit.197572

Exploit exploit

https://github.com/Meizhi-hua/cve/blob/main/upload_file.md

View Exploit ZIP pw:eip

Scores

CVSS v3 6.3

EPSS 0.0004

EPSS Percentile 13.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-434

Status published

Products (1)

byzoro/smart_s85f_firmware < 20230820

Published Sep 03, 2023

Tracked Since Feb 18, 2026