How severe is CVE-2023-5493?

CVE-2023-5493 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-5493 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5493?

CVE-2023-5493 affects Byzoro Smart S45f Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5493?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-5493 published?

CVE-2023-5493 was published on 2023-10-10 and last updated on 2026-06-17.

CVE-2023-5493

CVE-2023-5493 is a medium-severity vulnerability in Byzoro Smart S45f Firmware with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Byzoro Smart S45f Firmware
Published: 2023-10-10
Last modified: 2026-06-17

Description

A vulnerability has been found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 20230928 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /useratte/web.php. The manipulation of the argument file_upload leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-241645 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2023-5493?: A vulnerability has been found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 20230928 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /useratte/web.php. The manipulation of the argument file_upload leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-241645 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2023-5493?: CVE-2023-5493 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-5493 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5493?: CVE-2023-5493 affects Byzoro Smart S45f Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5493?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-5493 published?: CVE-2023-5493 was published on 2023-10-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:byzoro:smart_s45f_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Byzoro Smart S45f Firmware

CVE-2023-5494 — Medium (CVSS 6.3): A vulnerability was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to…
CVE-2023-5492 — Medium (CVSS 6.3): A vulnerability, which was classified as critical, was found in Byzoro Smart S45F Multi-Service Secure Gateway…
CVE-2023-5491 — Medium (CVSS 6.3): A vulnerability, which was classified as critical, has been found in Byzoro Smart S45F Multi-Service Secure Gateway…
CVE-2023-5490 — Medium (CVSS 6.3): A vulnerability classified as critical was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent…
CVE-2023-5489 — Medium (CVSS 6.3): A vulnerability classified as critical has been found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent…
CVE-2023-5488 — Medium (CVSS 6.3): A vulnerability was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to…

All CVEs affecting Byzoro Smart S45f Firmware →

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →