CVE-2023-5811

Name: CVE-2023-5811
Creator: NVD / NIST
Published: 2023-10-27T01:15:32.383+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2023-5811 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. A vulnerability, which was classified as problematic, was found in flusity CMS. Affected is the function loadPostAddForm of the file core/tools/posts.php. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

Description

A vulnerability, which was classified as problematic, was found in flusity CMS. Affected is the function loadPostAddForm of the file core/tools/posts.php. The manipulation of the argument menu_id leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The patch is identified as 6943991c62ed87c7a57989a0cb7077316127def8. It is recommended to apply a patch to fix this issue. VDB-243642 is the identifier assigned to this vulnerability.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.52%

40.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Flusity	Flusity	<= 2.304

References

https://github.com/flusity/flusity-CMS/commit/6943991c62ed87c7a57989a0cb7077316127def8Patch
https://github.com/flusity/flusity-CMS/issues/3Exploit, Issue Tracking, Third Party Advisory
https://vuldb.com/?ctiid.243642Permissions Required, Third Party Advisory, VDB Entry
https://vuldb.com/?id.243642Permissions Required, Third Party Advisory, VDB Entry
https://github.com/flusity/flusity-CMS/commit/6943991c62ed87c7a57989a0cb7077316127def8Patch
https://github.com/flusity/flusity-CMS/issues/3Exploit, Issue Tracking, Third Party Advisory
https://vuldb.com/?ctiid.243642Permissions Required, Third Party Advisory, VDB Entry
https://vuldb.com/?id.243642Permissions Required, Third Party Advisory, VDB Entry

Timeline

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

Frequently Asked Questions

What is CVE-2023-5811?

How severe is CVE-2023-5811?

CVE-2023-5811 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5811?

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-2023-5811?

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

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Source: NVD / NIST