How severe is CVE-2006-6669?

CVE-2006-6669 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2006-6669 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6669?

CVE-2006-6669 affects Webcalendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-6669?

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

When was CVE-2006-6669 published?

CVE-2006-6669 was published on 2006-12-20 and last updated on 2026-06-16.

CVE-2006-6669

CVE-2006-6669 is a medium-severity vulnerability in Webcalendar 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.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Webcalendar
Published: 2006-12-20
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in export_handler.php in WebCalendar 1.0.4 and earlier allows remote attackers to inject arbitrary web script or HTML via the format parameter.

Frequently asked questions

What is CVE-2006-6669?: Cross-site scripting (XSS) vulnerability in export_handler.php in WebCalendar 1.0.4 and earlier allows remote attackers to inject arbitrary web script or HTML via the format parameter.
How severe is CVE-2006-6669?: CVE-2006-6669 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2006-6669 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6669?: CVE-2006-6669 affects Webcalendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-6669?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-6669 published?: CVE-2006-6669 was published on 2006-12-20 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:webcalendar:webcalendar:1.0.4:*:*:*:*:*:*:*

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