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."

Published: 2012-10-09 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-2520 is rated Moderate Risk (47.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 24.18%, 96th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-2520

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-28 27.45% 24.18% -3.27%
2 2025-12-27 24.18% 27.45% +3.27%
3 2025-12-22 — 24.18% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-2520

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2012-2520

Affected software / configurations for CVE-2012-2520

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

References for CVE-2012-2520

cvelogic Threat Intelligence