flusity CMS Dashboard customblock.php loadCustomBlocCreateForm cross site scripting

published 2023-10-26 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-58076

cvss: 3.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits: 0; none known

A vulnerability was found in flusity CMS and classified as problematic. This issue affects the function loadCustomBlocCreateForm of the file /core/tools/customblock.php of the component Dashboard. The manipulation of the argument customblock_place leads to cross site scripting. The attack may be initiated 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 patch is named 81252bc764e1de2422e79e36194bba1289e7a0a5. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-243599.

Patch / fix

fixed in 1 links 1

flusity flusity 2023-10-24

github.com/flusity/flusity-CMS@81252bc commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-04-17)

Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/flusity/flusity-CMS/issues/1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CNA	3.0	3.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CNA	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

flusity CMS

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /flusity/flusity-CMS/commit/81252bc764e1de2422e79e36194bba1289e7a0a5
patch
github.com /flusity/flusity-CMS/issues/1
exploit, issue-tracking
vuldb.com /?id.243599
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.243599
signature, permissions-required, third-party-advisory

Sources

CVE List CVE-2023-5793
NVD CVE-2023-5793

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary