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MS12-007 - Important : Vulnerability in AntiXSS Library Could Allow Information Disclosure (2607664) - Version: 2.1

MS12-007 Version 2012-01-16 Severity Rating: Important Revision Note: V2.1 (January 16, 2012): Added a link to Microsoft Knowledge Base Article 2607664 under Known Issues in the Executive Summary. Also, revised entry in the update FAQ to clarify why the upgrade to AntiXSS Library version 4.2.1 is only available from the Microsoft Download Center. Summary: This security update resolves one privately reported vulnerability in the Microsoft Anti-Cross Site Scripting (AntiXSS) Library. The vulnerability could allow information disclosure if an attacker passes a malicious script to a website using the sanitization function of the AntiXSS Library. The consequences of the disclosure of that information depends on the nature of the information itself. Note that this vulnerability would not allow an attacker to execute code or to elevate the attacker's user rights directly, but it could be used to produce information that could be used to try to further compromise the affected system
Bulletin details at Microsoft.com

Related CVE Entries

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2012-0007 79 XSS Bypass 2012-01-10 2013-03-06
4.3
None Remote Medium Not required None Partial None
The Microsoft Anti-Cross Site Scripting (AntiXSS) Library 3.x and 4.0 does not properly evaluate characters after the detection of a Cascading Style Sheets (CSS) escaped character, which allows remote attackers to conduct cross-site scripting (XSS) attacks via HTML input, aka "AntiXSS Library Bypass Vulnerability."
Total number of vulnerabilities : 1

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