How severe is CVE-2011-1890?

CVE-2011-1890 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-1890 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1890?

CVE-2011-1890 primarily affects Microsoft Sharepoint Foundation. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1890?

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

When was CVE-2011-1890 published?

CVE-2011-1890 was published on 2011-09-15 and last updated on 2026-06-16.

CVE-2011-1890

CVE-2011-1890 is a medium-severity vulnerability in Microsoft Sharepoint Foundation with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 20% places it in the 97th 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: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Microsoft Sharepoint Foundation
Published: 2011-09-15
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in EditForm.aspx in Microsoft Office SharePoint Server 2010 and SharePoint Foundation 2010 allows remote attackers to inject arbitrary web script or HTML via a post, aka "Editform Script Injection Vulnerability."

Frequently asked questions

What is CVE-2011-1890?: Cross-site scripting (XSS) vulnerability in EditForm.aspx in Microsoft Office SharePoint Server 2010 and SharePoint Foundation 2010 allows remote attackers to inject arbitrary web script or HTML via a post, aka "Editform Script Injection Vulnerability."
How severe is CVE-2011-1890?: CVE-2011-1890 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-1890 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1890?: CVE-2011-1890 primarily affects Microsoft Sharepoint Foundation. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1890?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1890 published?: CVE-2011-1890 was published on 2011-09-15 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:microsoft:sharepoint_foundation:2010:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_server:2010:*:*:*:*:*:*:*

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