CVE-2023-5490

Name: CVE-2023-5490
Creator: NVD / NIST
Published: 2023-10-10T15:15:10.927+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.72%

Last modified Jun 17, 2026

CVE-2023-5490 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 1.72% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.72%

74.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Byzoro	Smart S45f Firmware	<= 20230928

References

https://github.com/llixixi/cve/blob/main/s45_upload_%20userattestation.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.241642Permissions Required, Third Party Advisory
https://vuldb.com/?id.241642Third Party Advisory
https://vuldb.com/?submit.213947
https://github.com/llixixi/cve/blob/main/s45_upload_%20userattestation.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.241642Permissions Required, Third Party Advisory
https://vuldb.com/?id.241642Third Party Advisory
https://vuldb.com/?submit.213947

Timeline

Published: Oct 10, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5490?

How severe is CVE-2023-5490?

CVE-2023-5490 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.72% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5490?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-5490?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST