TI-2023-05347 Aliases CVE-2023-5811 GHSA-9962-6v6v-536h

flusity CMS posts.php loadPostAddForm cross site scripting

MEDIUM 55CWE-79Published 2023-10-27 · Updated 2024-08-02

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00588 48th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
flusity	CMS	all versions	—	No fix listed	CNA

CMS Vendorflusity Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:flusity:flusity::::::::	up to 2.304	Vulnerable	flusity

cpe:2.3:a:flusity:flusity:*:*:*:*:*:*:*:* Versions up to 2.304 Vulnerable ·flusity

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-5811
2026-10-03 Alias added: GHSA-9962-6v6v-536h

References

Exploit 1

https://github.com/flusity/flusity-CMS/issues/3

Patch 1

https://github.com/flusity/flusity-CMS/commit/6943991c62ed87c7a57989a0cb7077316127def8

TI-2024-21322 An issue in flusity CMS v2.33 allows a remote attacker to execute arbitrary code via the add_addon.php component. CVSS 3.1CRITICAL 9.8
TI-2024-16763 Directory Traversal vulnerability in flusity CMS v.2.4 allows a remote attacker to… CVSS 3.1CRITICAL 9.8
TI-2024-17412 flusity-CMS v2.33 was discovered to contain a Cross-Site Request Forgery (CSRF) via the… CVSS 3.1HIGH 8.8
TI-2024-16735 flusity-CMS v2.33 was discovered to contain a Cross-Site Request Forgery (CSRF) via the… CVSS 3.1HIGH 8.8
TI-2024-16734 flusity-CMS v2.33 was discovered to contain a Cross-Site Request Forgery (CSRF) via the… CVSS 3.1HIGH 8.8
TI-2024-16166 Cross Site Request Forgery (CSRF) vulnerability in flusity-CMS v.2.33, allows remote… CVSS 3.1HIGH 8.8

See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences