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Fencer Vulns
critical 9.0

CVE-2008-5663 json

Multiple unrestricted file upload vulnerabilities in Kusaba 1.0.4 and earlier allow remote authenticated users to execute arbitrary code by…

published 2008-12-18 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-5634

cvss
9.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.3%
EPSS 6.3% chance of exploitation in 30 days, percentile 93%
public exploits
2
Exploit-DB

Summary

Multiple unrestricted file upload vulnerabilities in Kusaba 1.0.4 and earlier allow remote authenticated users to execute arbitrary code by uploading a file with an executable extension using (1) load_receiver.php or (2) a shipainter action to paint_save.php, then accessing the uploaded file via a direct request to this file in their user directory.

Timeline

  1. First public exploit (EDB-6711)
  2. Published

Exploit prediction

6.27% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-6711 Kusaba 1.0.4 - Remote Code Execution (2) webapps, 2008-10-09
  • EDB-6706 Kusaba 1.0.4 - Remote Code Execution (1) webapps, 2008-10-09

CVSS scores

assigned by version score vector
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

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.