CVE-2009-0602: Unrestricted file upload vulnerability in upload.php in WikkiTikkiTavi 1.11 allows remote attackers to execute

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HIGH 7.5DOWNGRADE

CVE-2009-0602 is a high-severity flaw (CVSS 7.5) affecting wikkitikkitavi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unrestricted file upload vulnerability in upload.php in WikkiTikkiTavi 1.11 allows remote attackers to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in img/.

Why this priority

High severity
EPSS top 8%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	4.5% (top 8%)
CISA exploited list	No
Weakness	CWE-20
Published	2009-02-16
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: wikkitikkitavi

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

Am I affected?

Timeline

2009-02-16 20:30 UTCPublished CVE record published
2026-06-16 23:05 UTCUpdated Record last modified

wikkitikkitavi wikkitikkitavi DOWNGRADE

Affected: 1.11

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.11

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.11 (Debian / Ubuntu)

apt-cache madison wikkitikkitavi sudo apt install wikkitikkitavi=<VERSION_BEFORE_1.11> sudo apt-mark hold wikkitikkitavi

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list wikkitikkitavi sudo dnf downgrade wikkitikkitavi-<VERSION_BEFORE_1.11> sudo dnf versionlock add wikkitikkitavi

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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: WikkiTikkiTavi 1.11 - Arbitrary '.PHP' File Upload

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-2009-0602?

wikkitikkitavi: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2009-0602 being exploited?

CVE-2009-0602 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-2009-0602 affect?

CVE-2009-0602 affects wikkitikkitavi. Severity is high (CVSS 7.5). Unrestricted file upload vulnerability in upload.php in WikkiTikkiTavi 1.11 allows remote attackers to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in img/.

How urgent is CVE-2009-0602?

Priority 54/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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