CVE-2023-5811 json
flusity CMS posts.php loadPostAddForm cross site scripting
published 2023-10-27 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-58094
- cvss
- 2.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
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.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/flusity/flusity-CMS/issues/3 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 2.4 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N |
| CNA | 3.0 | 2.4 | CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N |
| CNA | 2.0 | 3.3 | AV:N/AC:L/Au:M/C:N/I:P/A:N |
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/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/6943991c62ed87c7a57989a0cb7077316127def8
patch
-
github.com
/flusity/flusity-CMS/issues/3
exploit, issue-tracking, third-party-advisory
-
vuldb.com
/?id.243642
vdb-entry, technical-description, permissions-required, third-party-advisory
-
vuldb.com
/?ctiid.243642
signature, permissions-required, third-party-advisory, vdb-entry
Sources
- CVE List CVE-2023-5811
- NVD CVE-2023-5811
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.