How severe is CVE-2006-3556?

CVE-2006-3556 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2006-3556 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-3556?

CVE-2006-3556 affects Extcalendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-3556?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-3556 published?

CVE-2006-3556 was published on 2006-07-13 and last updated on 2026-06-16.

CVE-2006-3556

CVE-2006-3556 is a medium-severity vulnerability in Extcalendar with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Extcalendar
Published: 2006-07-13
Last modified: 2026-06-16

Description

PHP remote file inclusion vulnerability in extcalendar.php in Mohamed Moujami ExtCalendar 2.0 allows remote attackers to execute arbitrary PHP code via a URL in the mosConfig_absolute_path parameter.

Frequently asked questions

What is CVE-2006-3556?: PHP remote file inclusion vulnerability in extcalendar.php in Mohamed Moujami ExtCalendar 2.0 allows remote attackers to execute arbitrary PHP code via a URL in the mosConfig_absolute_path parameter.
How severe is CVE-2006-3556?: CVE-2006-3556 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2006-3556 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-3556?: CVE-2006-3556 affects Extcalendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-3556?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-3556 published?: CVE-2006-3556 was published on 2006-07-13 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:extcalendar:extcalendar:2.0:*:*:*:*:*:*:*

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