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Vulnerability record · CVE-2023-5490 · published 10 October 2023

CVE-2023-5490: Byzoro smart s45f firmware unrestricted file upload vulnerability

BByzoro · Smart S45f Firmware

A vulnerability classified as critical was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 20230928. This vulnerability affects unknown code of the file /useratte/userattestation.php. The manipulation of the argument web_img leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-241642 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

8.8 CVSS 3.1 High EPSS 1.7% · top 23.4% CWE-434 · Unrestricted file upload
8.8CVSS 3.1 base score, v2 6.5
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability classified as critical was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 20230928. This vulnerability affects unknown code of the file /useratte/userattestation.php. The manipulation of the argument web_img leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-241642 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/llixixi/cve/blob/main/s45_upload_%20userattestation.md ExploitThird Party Advisory
https://vuldb.com/?ctiid.241642 Permissions RequiredThird Party Advisory
https://vuldb.com/?id.241642 Third Party Advisory
https://vuldb.com/?submit.213947
https://github.com/llixixi/cve/blob/main/s45_upload_%20userattestation.md ExploitThird Party Advisory
https://vuldb.com/?ctiid.241642 Permissions RequiredThird Party Advisory
https://vuldb.com/?id.241642 Third Party Advisory
https://vuldb.com/?submit.213947

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-4873Byzoro smart s45f firmware os command injection vulnerabilityA vulnerability, which was classified as critical, was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to …EPSS 22%9.8CVE-2023-4745Byzoro smart s45f firmware sql injection vulnerabilityA vulnerability was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 20230822. It has been rated as crit…EPSS 1.9%8.8CVE-2023-5492Byzoro smart s45f firmware unrestricted file upload vulnerabilityA vulnerability, which was classified as critical, was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to …EPSS 1.8%8.8CVE-2023-5493Byzoro smart s45f firmware unrestricted file upload vulnerabilityA vulnerability has been found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 20230928 and classified as cri…EPSS 1.7%8.8CVE-2023-5494Byzoro smart s45f firmware os command injection vulnerabilityA vulnerability was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 20230928 and classified as critical…EPSS 15%8.8CVE-2023-5491Byzoro smart s45f firmware unrestricted file upload vulnerabilityA vulnerability, which was classified as critical, has been found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform u…EPSS 1.7%8.8CVE-2023-5489Byzoro smart s45f firmware unrestricted file upload vulnerabilityA vulnerability classified as critical has been found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 2023092…EPSS 1.7%8.8CVE-2023-5488Byzoro smart s45f firmware unrestricted file upload vulnerabilityA vulnerability was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 20230928. It has been rated as crit…EPSS 1.8%

Source: NIST National Vulnerability Database (record CVE-2023-5490), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.