CVE-2006-6739: PHP remote file inclusion vulnerability in buycd.php in Paristemi 0.8.3 allows remote attackers to execute arb

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HIGH 7.5DOWNGRADE

CVE-2006-6739 is a high-severity flaw (CVSS 7.5) affecting paristemi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in buycd.php in Paristemi 0.8.3 allows remote attackers to execute arbitrary PHP code via a URL in the HTTP_DOCUMENT_ROOT parameter, a different vector than CVE-2006-6689.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Weakness	CWE-94
Published	2006-12-26
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: paristemi

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

Am I affected?

Timeline

2006-12-26 23:28 UTCPublished CVE record published
2026-06-16 22:33 UTCUpdated Record last modified

paristemi paristemi DOWNGRADE

Affected: 0.8.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.8.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.8.3 (Debian / Ubuntu)

apt-cache madison paristemi sudo apt install paristemi=<VERSION_BEFORE_0.8.3> sudo apt-mark hold paristemi

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

dnf --showduplicates list paristemi sudo dnf downgrade paristemi-<VERSION_BEFORE_0.8.3> sudo dnf versionlock add paristemi

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: Paristemi 0.8.3b - 'buycd.php' Remote File Inclusion

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-2006-6739?

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

Is CVE-2006-6739 being exploited?

CVE-2006-6739 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-2006-6739 affect?

CVE-2006-6739 affects paristemi. Severity is high (CVSS 7.5). PHP remote file inclusion vulnerability in buycd.php in Paristemi 0.8.3 allows remote attackers to execute arbitrary PHP code via a URL in the HTTP_DOCUMENT_ROOT parameter, a different vector than CVE-2006-6689.

How urgent is CVE-2006-6739?

Priority 52/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-6689 HIGH 7.5 UPGRADE Multiple PHP remote file inclusion vulnerabilities in Paristemi 0.8.3 and earlier allow remote attackers to ex

References

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