CVE-2006-4424: PHP remote file inclusion vulnerability in coin_includes/constants.php in phpCOIN 1.2.3 allows remote attacker

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MEDIUM 5.1DOWNGRADE

CVE-2006-4424 is a medium-severity flaw (CVSS 5.1) affecting phpcoin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in coin_includes/constants.php in phpCOIN 1.2.3 allows remote attackers to execute arbitrary PHP code via the _CCFG[_PKG_PATH_INCL] parameter.

Why this priority

EPSS top 5%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	5.1 (Medium)
EPSS exploit chance	7.6% (top 5%)
CISA exploited list	No
Published	2006-08-29
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: coinsoft technologies

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

Am I affected?

Timeline

2006-08-29 00:04 UTCPublished CVE record published
2026-06-16 22:29 UTCUpdated Record last modified

coinsoft technologies phpcoin DOWNGRADE

Affected: 1.2.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.2.3 (Debian / Ubuntu)

apt-cache madison phpcoin sudo apt install phpcoin=<VERSION_BEFORE_1.2.3> sudo apt-mark hold phpcoin

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

dnf --showduplicates list phpcoin sudo dnf downgrade phpcoin-<VERSION_BEFORE_1.2.3> sudo dnf versionlock add phpcoin

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: PHPCOIN 1.2.3 - 'session_set.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-2006-4424?

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

Is CVE-2006-4424 being exploited?

CVE-2006-4424 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-2006-4424 affect?

CVE-2006-4424 affects phpcoin. Severity is medium (CVSS 5.1). PHP remote file inclusion vulnerability in coin_includes/constants.php in phpCOIN 1.2.3 allows remote attackers to execute arbitrary PHP code via the _CCFG[_PKG_PATH_INCL] parameter.

How urgent is CVE-2006-4424?

Priority 46/100. EPSS top 5%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

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References

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