How severe is CVE-2006-4677?

CVE-2006-4677 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-4677 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4677?

CVE-2006-4677 primarily affects Phpopenchat. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-4677?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2006-4677 published?

CVE-2006-4677 was published on 2006-09-11 and last updated on 2026-06-16.

CVE-2006-4677

CVE-2006-4677 is a high-severity vulnerability in Phpopenchat with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Phpopenchat
Published: 2006-09-11
Last modified: 2026-06-16

Description

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 due to a vulnerability in PHP, then it should be excluded from CVE

Frequently asked questions

What is CVE-2006-4677?: 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 due to a vulnerability in PHP, then it should be excluded from CVE
How severe is CVE-2006-4677?: CVE-2006-4677 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-4677 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4677?: CVE-2006-4677 primarily affects Phpopenchat. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4677?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-4677 published?: CVE-2006-4677 was published on 2006-09-11 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:phpopenchat:phpopenchat:*:*:*:*:*:*:*:*
cpe:2.3:a:phpopenchat:phpopenchat:2.3.4:*:*:*:*:*:*:*
cpe:2.3:a:phpopenchat:phpopenchat:3.0.0:*:*:*:*:*:*:*

More vulnerabilities in Phpopenchat

CVE-2005-0862 — High (CVSS 7.5): Multiple PHP remote file inclusion vulnerabilities in PHPOpenChat 3.0.1 and earlier allow remote attackers to execute…
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CVE-2005-0863 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in PHPOpenChat v3.x allows remote attackers to inject arbitrary web script or…

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