CVE-2012-2520

What it is

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."

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

34.3% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2012-10-09 21:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:41 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 34.3% in the next 30 days (EPSS).
• Severity: 4.3 MEDIUM (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2012-10-09 21:55 UTC

Last modified

2026-06-16 23:41 UTC

Exploit probability

34.3% · EPSS, next 30 days

Weakness

CWE-79 · Cross-site scripting

Record status

Modified

Affected

• Microsoft Groove Server 2010
• Microsoft Infopath 2007
• Microsoft Infopath 2010
• Microsoft Lync 2010
• Microsoft Office Communicator 2007
• Microsoft Office Web Apps 2010
• Microsoft Sharepoint Foundation 2010
• Microsoft Sharepoint Server 2007

Attack profile CVSS 2.0 · 4.3

Attack vector

Network

Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2012-2520.md and follow it. Check whether this project is affected by CVE-2012-2520. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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