How severe is CVE-2010-0637?

CVE-2010-0637 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2010-0637 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-0637?

CVE-2010-0637 affects K5n Webcalendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-0637?

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

When was CVE-2010-0637 published?

CVE-2010-0637 was published on 2010-02-12 and last updated on 2026-06-16.

CVE-2010-0637

CVE-2010-0637 is a medium-severity vulnerability in K5n 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. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: K5n Webcalendar
Published: 2010-02-12
Last modified: 2026-06-16

Description

Multiple cross-site request forgery (CSRF) vulnerabilities in WebCalendar 1.2.0, and other versions before 1.2.5, allow remote attackers to hijack the authentication of administrators for requests that (1) delete an event or (2) ban an IP address from posting via unknown vectors. NOTE: some of these details are obtained from third party information.

Frequently asked questions

What is CVE-2010-0637?: Multiple cross-site request forgery (CSRF) vulnerabilities in WebCalendar 1.2.0, and other versions before 1.2.5, allow remote attackers to hijack the authentication of administrators for requests that (1) delete an event or (2) ban an IP address from posting via unknown vectors. NOTE: some of these details are obtained from third party information.
How severe is CVE-2010-0637?: CVE-2010-0637 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2010-0637 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-0637?: CVE-2010-0637 affects K5n Webcalendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-0637?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-0637 published?: CVE-2010-0637 was published on 2010-02-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:k5n:webcalendar:1.2.0:*:*:*:*:*:*:*

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