How severe is CVE-2006-5426?

CVE-2006-5426 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-5426 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-5426?

CVE-2006-5426 affects Local Calendar System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-5426?

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-2006-5426 published?

CVE-2006-5426 was published on 2006-10-20 and last updated on 2026-06-16.

CVE-2006-5426

CVE-2006-5426 is a high-severity vulnerability in Local Calendar System 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: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Local Calendar System
Published: 2006-10-20
Last modified: 2026-06-16

Description

PHP remote file inclusion vulnerability in lib/lcUser.php in LoCal Calendar System 1.1 remote attackers to execute arbitrary PHP code via a URL in the LIBDIR parameter.

Frequently asked questions

What is CVE-2006-5426?: PHP remote file inclusion vulnerability in lib/lcUser.php in LoCal Calendar System 1.1 remote attackers to execute arbitrary PHP code via a URL in the LIBDIR parameter.
How severe is CVE-2006-5426?: CVE-2006-5426 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-5426 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-5426?: CVE-2006-5426 affects Local Calendar System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-5426?: 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-2006-5426 published?: CVE-2006-5426 was published on 2006-10-20 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:local_calendar_system:local_calendar_system:1.1:*:*:*:*:*:*:*