CVE-2011-1890

Sharepoint Foundation vulnerability

CVSS

4.3

EPSS

19.8%

EPSS pct

97th

Exploited

No known

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."

Affected vendor

Microsoft

Affected product

Sharepoint Foundation

CVSS vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2011-09-15

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to integrity.

Its EPSS score of 19.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2011-1890

Confirm whether Microsoft Sharepoint Foundation is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2011-1890.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-1890

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-1890 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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