How severe is CVE-2010-4207?

CVE-2010-4207 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-4207 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4207?

CVE-2010-4207 primarily affects Yahoo Yui. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4207?

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

When was CVE-2010-4207 published?

CVE-2010-4207 was published on 2010-11-07 and last updated on 2026-06-16.

CVE-2010-4207

CVE-2010-4207 is a medium-severity vulnerability in Yahoo Yui 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: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Yahoo Yui
Published: 2010-11-07
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in the Flash component infrastructure in YUI 2.4.0 through 2.8.1, as used in Bugzilla, Moodle, and other products, allows remote attackers to inject arbitrary web script or HTML via vectors related to charts/assets/charts.swf.

Frequently asked questions

What is CVE-2010-4207?: Cross-site scripting (XSS) vulnerability in the Flash component infrastructure in YUI 2.4.0 through 2.8.1, as used in Bugzilla, Moodle, and other products, allows remote attackers to inject arbitrary web script or HTML via vectors related to charts/assets/charts.swf.
How severe is CVE-2010-4207?: CVE-2010-4207 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-4207 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4207?: CVE-2010-4207 primarily affects Yahoo Yui. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4207?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-4207 published?: CVE-2010-4207 was published on 2010-11-07 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:yahoo:yui:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:yahoo:yui:2.5.0:*:*:*:*:*:*:*
cpe:2.3:a:yahoo:yui:2.5.1:*:*:*:*:*:*:*
cpe:2.3:a:yahoo:yui:2.5.2:*:*:*:*:*:*:*
cpe:2.3:a:yahoo:yui:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:yahoo:yui:2.7.0:*:*:*:*:*:*:*
cpe:2.3:a:yahoo:yui:2.8.0:*:*:*:*:*:*:*
cpe:2.3:a:yahoo:yui:2.8.1:*:*:*:*:*:*:*

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