How severe is CVE-2006-1336?

CVE-2006-1336 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2006-1336 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-2006-1336?

CVE-2006-1336 affects Extcalendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-1336?

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

When was CVE-2006-1336 published?

CVE-2006-1336 was published on 2006-03-21 and last updated on 2026-06-16.

CVE-2006-1336

CVE-2006-1336 is a medium-severity vulnerability in Extcalendar with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Extcalendar
Published: 2006-03-21
Last modified: 2026-06-16

Description

Cross-site scripting vulnerability in calendar.php in ExtCalendar 1.0 and possibly other versions before 2.0 allows remote attackers to inject arbitrary web script or HTML via the (1) year, (2) month, (3) next, and (4) prev parameters.

Frequently asked questions

What is CVE-2006-1336?: Cross-site scripting vulnerability in calendar.php in ExtCalendar 1.0 and possibly other versions before 2.0 allows remote attackers to inject arbitrary web script or HTML via the (1) year, (2) month, (3) next, and (4) prev parameters.
How severe is CVE-2006-1336?: CVE-2006-1336 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2006-1336 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-2006-1336?: CVE-2006-1336 affects Extcalendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-1336?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-1336 published?: CVE-2006-1336 was published on 2006-03-21 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:extcalendar:extcalendar:1.0:*:*:*:*:*:*:*

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