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Vulnerability record · CVE-2012-1858 · published 12 June 2012

CVE-2012-1858: Microsoft lync information exposure vulnerability

Microsoft · Lync

The toStaticHTML API (aka the SafeHTML component) in Microsoft Internet Explorer 8 and 9, Communicator 2007 R2, and Lync 2010 and 2010 Attendee does not properly handle event attributes and script, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted HTML document, aka "HTML Sanitization Vulnerability."

4.3 CVSS 2.0 Medium EPSS 22% · top 2.4% CWE-200 · Information exposure
4.3CVSS 2.0 base score
22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

The toStaticHTML API (aka the SafeHTML component) in Microsoft Internet Explorer 8 and 9, Communicator 2007 R2, and Lync 2010 and 2010 Attendee does not properly handle event attributes and script, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted HTML document, aka "HTML Sanitization Vulnerability."

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.us-cert.gov/cas/techalerts/TA12-164A.html US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-192A.html US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-037
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-050
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15530
http://www.us-cert.gov/cas/techalerts/TA12-164A.html US Government Resource
http://www.us-cert.gov/cas/techalerts/TA12-192A.html US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-037
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-039
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-050
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15530

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Source: NIST National Vulnerability Database (record CVE-2012-1858), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.