How severe is CVE-2010-0349?

CVE-2010-0349 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-0349 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-0349?

CVE-2010-0349 primarily affects C-3.co.jp Webcalenderc3. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-0349?

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

When was CVE-2010-0349 published?

CVE-2010-0349 was published on 2010-01-15 and last updated on 2026-06-16.

CVE-2010-0349

CVE-2010-0349 is a medium-severity vulnerability in C-3.co.jp Webcalenderc3 with a CVSS 2.0 base score of 4.3. 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-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: C-3.co.jp Webcalenderc3
Published: 2010-01-15
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in C3 Corp. WebCalenderC3 0.32 and earlier allows remote attackers to inject arbitrary web script or HTML via unknown vectors. NOTE: this issue could not be reproduced by the vendor, but a patch was provided anyway. The original researcher is reliable.

Frequently asked questions

What is CVE-2010-0349?: Cross-site scripting (XSS) vulnerability in C3 Corp. WebCalenderC3 0.32 and earlier allows remote attackers to inject arbitrary web script or HTML via unknown vectors. NOTE: this issue could not be reproduced by the vendor, but a patch was provided anyway. The original researcher is reliable.
How severe is CVE-2010-0349?: CVE-2010-0349 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-0349 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-0349?: CVE-2010-0349 primarily affects C-3.co.jp Webcalenderc3. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-0349?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-0349 published?: CVE-2010-0349 was published on 2010-01-15 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:c-3.co.jp:webcalenderc3:*:*:*:*:*:*:*:*
cpe:2.3:a:c-3.co.jp:webcalenderc3:0.31:*:*:*:*:*:*:*
cpe:2.3:a:c-3.co.jp:webcalenderc3:0.31:s2:*:*:*:*:*:*

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