How severe is CVE-2012-2520?

CVE-2012-2520 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-2520 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-2520?

CVE-2012-2520 primarily affects Microsoft Groove Server. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-2520?

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

When was CVE-2012-2520 published?

CVE-2012-2520 was published on 2012-10-09 and last updated on 2026-06-16.

CVE-2012-2520

CVE-2012-2520 is a medium-severity vulnerability in Microsoft Groove Server with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 28% 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: 28% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Microsoft Groove Server
Published: 2012-10-09
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in Microsoft InfoPath 2007 SP2 and SP3 and 2010 SP1, Communicator 2007 R2, Lync 2010 and 2010 Attendee, SharePoint Server 2007 SP2 and SP3 and 2010 SP1, Groove Server 2010 SP1, Windows SharePoint Services 3.0 SP2, SharePoint Foundation 2010 SP1, and Office Web Apps 2010 SP1 allows remote attackers to inject arbitrary web script or HTML via a crafted string, aka "HTML Sanitization Vulnerability."

Frequently asked questions

What is CVE-2012-2520?: Cross-site scripting (XSS) vulnerability in Microsoft InfoPath 2007 SP2 and SP3 and 2010 SP1, Communicator 2007 R2, Lync 2010 and 2010 Attendee, SharePoint Server 2007 SP2 and SP3 and 2010 SP1, Groove Server 2010 SP1, Windows SharePoint Services 3.0 SP2, SharePoint Foundation 2010 SP1, and Office Web Apps 2010 SP1 allows remote attackers to inject arbitrary web script or HTML via a crafted string, aka "HTML Sanitization Vulnerability."
How severe is CVE-2012-2520?: CVE-2012-2520 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-2520 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-2520?: CVE-2012-2520 primarily affects Microsoft Groove Server. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-2520?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-2520 published?: CVE-2012-2520 was published on 2012-10-09 and last updated on 2026-06-16.

References

Affected products (12)

cpe:2.3:a:microsoft:groove_server:2010:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:infopath:2007:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:infopath:2010:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:lync:2010:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:lync:2010:*:attendee:*:*:*:*:*
cpe:2.3:a:microsoft:office_communicator:2007:r2:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_web_apps:2010:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_foundation:2010:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_server:2007:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_server:2007:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_server:2010:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:sharepoint_services:3.0:sp2:*:*:*:*:*:*

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