CVE-2008-5663: Multiple unrestricted file upload vulnerabilities in Kusaba 1.0.4 and earlier allow remote authenticated users

Q: How do I fix CVE-2008-5663?

kusaba: upgrade to newer than 1.0.4. Exact commands for each OS are on this page.

Q: Is CVE-2008-5663 being exploited?

CVE-2008-5663 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2008-5663 affect?

CVE-2008-5663 affects kusaba. Severity is high (CVSS 9.0). 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

Q: How urgent is CVE-2008-5663?

Priority 60/100. Critical severity; EPSS top 6%: very likely to be exploited; Public exploit reference

This week

HIGH 9.0UPGRADE

CVE-2008-5663 is a high-severity flaw (CVSS 9.0) affecting kusaba. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
EPSS top 6%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.0 (High)
EPSS exploit chance	6.3% (top 6%)
CISA exploited list	No
Weakness	CWE-20
Published	2008-12-19
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: kusaba

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2008-12-19 01:51 UTCPublished CVE record published
2026-06-16 23:00 UTCUpdated Record last modified

kusaba kusaba UPGRADE

Affected: <= 1.0.4

Fixed in: newer than 1.0.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy kusaba || rpm -q kusaba || kusaba --version

2. UPGRADE to newer than 1.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kusaba

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kusaba

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Kusaba 1.0.4 - Remote Code Execution (1)
Exploit-DB: Kusaba 1.0.4 - Remote Code Execution (2)

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2008-5663?

kusaba: upgrade to newer than 1.0.4. Exact commands for each OS are on this page.

Is CVE-2008-5663 being exploited?

CVE-2008-5663 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2008-5663 affect?

CVE-2008-5663 affects kusaba. Severity is high (CVSS 9.0). 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

How urgent is CVE-2008-5663?

Priority 60/100. Critical severity; EPSS top 6%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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