CVE-2006-4677: PHP remote file inclusion vulnerability in contrib/yabbse/poc.php in phpopenchat before 3.0.2 allows remote at

Q: How do I fix CVE-2006-4677?

phpopenchat: upgrade to newer than 3.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2006-4677 being exploited?

CVE-2006-4677 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-2006-4677 affect?

CVE-2006-4677 affects phpopenchat. Severity is high (CVSS 7.5). PHP remote file inclusion vulnerability in contrib/yabbse/poc.php in phpopenchat before 3.0.2 allows remote attackers to execute arbitrary PHP code via the sourcedir parameter. NOTE: this issue was disputed by a third-party researcher who

This month

HIGH 7.5UPGRADE

CVE-2006-4677 is a high-severity flaw (CVSS 7.5) affecting phpopenchat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in contrib/yabbse/poc.php in phpopenchat before 3.0.2 allows remote attackers to execute arbitrary PHP code via the sourcedir parameter. NOTE: this issue was disputed by a third-party researcher who stated that the _REQUEST parameters were dynamically unset at the beginning of the file. Another researcher noted, and CVE agrees, that the unset PHP function can be bypassed (CVE-2006-3017). If this issue is

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Published	2006-09-11
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: phpopenchat

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

Am I affected?

Timeline

2006-09-11 17:04 UTCPublished CVE record published
2026-06-16 22:29 UTCUpdated Record last modified

phpopenchat phpopenchat UPGRADE

Affected: <= 3.0.1 · 2.3.4 · 3.0.0

Fixed in: newer than 3.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.0.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade phpopenchat

Note

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

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-2006-4677?

phpopenchat: upgrade to newer than 3.0.1. Exact commands for each OS are on this page.

Is CVE-2006-4677 being exploited?

CVE-2006-4677 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-2006-4677 affect?

CVE-2006-4677 affects phpopenchat. Severity is high (CVSS 7.5). PHP remote file inclusion vulnerability in contrib/yabbse/poc.php in phpopenchat before 3.0.2 allows remote attackers to execute arbitrary PHP code via the sourcedir parameter. NOTE: this issue was disputed by a third-party researcher who

How urgent is CVE-2006-4677?

Priority 45/100. High severity

Software pages

PHP vulnerabilities

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CVE-2005-0862 HIGH 7.5 DOWNGRADE Multiple PHP remote file inclusion vulnerabilities in PHPOpenChat 3.0.1 and earlier allow remote attackers to

References

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