How severe is CVE-2010-4890?

CVE-2010-4890 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-4890 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4890?

CVE-2010-4890 primarily affects Andreas Kiefer Ke Yac. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4890?

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

When was CVE-2010-4890 published?

CVE-2010-4890 was published on 2011-10-07 and last updated on 2026-06-16.

CVE-2010-4890

CVE-2010-4890 is a medium-severity vulnerability in Andreas Kiefer Ke Yac 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% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Andreas Kiefer Ke Yac
Published: 2011-10-07
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in the Yet Another Calendar (ke_yac) extension before 1.1.2 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2010-4890?: Cross-site scripting (XSS) vulnerability in the Yet Another Calendar (ke_yac) extension before 1.1.2 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2010-4890?: CVE-2010-4890 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-4890 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4890?: CVE-2010-4890 primarily affects Andreas Kiefer Ke Yac. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4890?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-4890 published?: CVE-2010-4890 was published on 2011-10-07 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:andreas_kiefer:ke_yac:*:*:*:*:*:*:*:*
cpe:2.3:a:andreas_kiefer:ke_yac:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:andreas_kiefer:ke_yac:1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:andreas_kiefer:ke_yac:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:andreas_kiefer:ke_yac:1.1.0:*:*:*:*:*:*:*

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