How severe is CVE-2010-0817?

CVE-2010-0817 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-0817 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 29% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-0817?

CVE-2010-0817 primarily affects Microsoft Sharepoint Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-0817?

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

When was CVE-2010-0817 published?

CVE-2010-0817 was published on 2010-04-29 and last updated on 2026-06-16.

CVE-2010-0817

CVE-2010-0817 is a medium-severity vulnerability in Microsoft Sharepoint Server with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 29% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 29% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Microsoft Sharepoint Server
Published: 2010-04-29
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in _layouts/help.aspx in Microsoft SharePoint Server 2007 12.0.0.6421 and possibly earlier, and SharePoint Services 3.0 SP1 and SP2, versions, allows remote attackers to inject arbitrary web script or HTML via the cid0 parameter.

Frequently asked questions

What is CVE-2010-0817?: Cross-site scripting (XSS) vulnerability in _layouts/help.aspx in Microsoft SharePoint Server 2007 12.0.0.6421 and possibly earlier, and SharePoint Services 3.0 SP1 and SP2, versions, allows remote attackers to inject arbitrary web script or HTML via the cid0 parameter.
How severe is CVE-2010-0817?: CVE-2010-0817 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-0817 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 29% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-0817?: CVE-2010-0817 primarily affects Microsoft Sharepoint Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-0817?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-0817 published?: CVE-2010-0817 was published on 2010-04-29 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:microsoft:sharepoint_server:2007:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_services:3.0:sp1:x32:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_services:3.0:sp1:x64:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_services:3.0:sp2:x32:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_services:3.0:sp2:x64:*:*:*:*:*

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