CVE-2023-5812

Name: CVE-2023-5812
Creator: NVD / NIST
Published: 2023-10-27T02:15:07.477+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2023-5812 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability has been found in flusity CMS and classified as critical. Affected by this vulnerability is the function handleFileUpload of the file core/tools/upload.php. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

A vulnerability has been found in flusity CMS and classified as critical. Affected by this vulnerability is the function handleFileUpload of the file core/tools/upload.php. The manipulation of the argument uploaded_file leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The associated identifier of this vulnerability is VDB-243643.

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

0.69%

48.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Flusity	Flusity	<= 2.304

References

https://github.com/flusity/flusity-CMS/issues/4Exploit, Issue Tracking, Third Party Advisory
https://vuldb.com/?ctiid.243643Permissions Required, Third Party Advisory, VDB Entry
https://vuldb.com/?id.243643Third Party Advisory, VDB Entry
https://github.com/flusity/flusity-CMS/issues/4Exploit, Issue Tracking, Third Party Advisory
https://vuldb.com/?ctiid.243643Permissions Required, Third Party Advisory, VDB Entry
https://vuldb.com/?id.243643Third Party Advisory, VDB Entry

Timeline

Published: Oct 27, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5812?

How severe is CVE-2023-5812?

CVE-2023-5812 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5812?

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-2023-5812?

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

Scan your code now

Source: NVD / NIST