How severe is CVE-2006-6763?

CVE-2006-6763 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-6763 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6763?

CVE-2006-6763 affects Keep It Simple Guest Book. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-6763?

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-2006-6763 published?

CVE-2006-6763 was published on 2006-12-27 and last updated on 2026-06-16.

CVE-2006-6763

CVE-2006-6763 is a high-severity vulnerability in Keep It Simple Guest Book 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% (79th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Keep It Simple Guest Book
Published: 2006-12-27
Last modified: 2026-06-16

Description

Multiple PHP remote file inclusion vulnerabilities in the Keep It Simple Guest Book (KISGB) allow remote attackers to execute arbitrary PHP code via a URL in the (1) path_to_themes parameter in (a) authenticate.php, and the (2) default_path_for_themes parameter in (b) admin.php and (c) upconfig.php.

Frequently asked questions

What is CVE-2006-6763?: Multiple PHP remote file inclusion vulnerabilities in the Keep It Simple Guest Book (KISGB) allow remote attackers to execute arbitrary PHP code via a URL in the (1) path_to_themes parameter in (a) authenticate.php, and the (2) default_path_for_themes parameter in (b) admin.php and (c) upconfig.php.
How severe is CVE-2006-6763?: CVE-2006-6763 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-6763 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6763?: CVE-2006-6763 affects Keep It Simple Guest Book. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-6763?: 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-2006-6763 published?: CVE-2006-6763 was published on 2006-12-27 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:keep_it_simple_guest_book:keep_it_simple_guest_book:5.0:*:*:*:*:*:*:*

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CVE-2006-6764 — Medium (CVSS 6.8): PHP remote file inclusion vulnerability in authenticate.php in Keep It Simple Guest Book (KISGB), when executing PHP…

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