CVE-2006-4122

CVE-2006-4122 is a high-severity vulnerability in Simple One-file Guestbook 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

Description

Simple one-file guestbook 1.0 and earlier allows remote attackers to bypass authentication and delete guestbook entries via a modified id parameter to guestbook.php.

Frequently asked questions

What is CVE-2006-4122?
Simple one-file guestbook 1.0 and earlier allows remote attackers to bypass authentication and delete guestbook entries via a modified id parameter to guestbook.php.
How severe is CVE-2006-4122?
CVE-2006-4122 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-4122 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4122?
CVE-2006-4122 affects Simple One-file Guestbook. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-4122?
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-2006-4122 published?
CVE-2006-4122 was published on 2006-08-14 and last updated on 2026-06-16.

References

Affected products (1)