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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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source: https://www.securityfocus.com/bid/51291/info

Microsoft Anti-Cross Site Scripting (AntiXSS) Library is prone to a security-bypass vulnerability that affects the sanitization module.

An attacker can exploit this vulnerability to bypass the filter and conduct cross-site scripting attacks. Successful exploits may allow attackers to execute arbitrary script code and steal cookie-based authentication credentials.

Microsoft Anti-Cross Site Scripting Library 3.x and 4.0 are vulnerable.

string data = Microsoft.Security.Application.Sanitizer.GetSafeHtml("a<style><!--div{font-family:Foo,Bar\\,'a\\a';font-family:';color:expression(alert(1));y'}--></style><div>b</div>");

string data = Microsoft.Security.Application.Sanitizer.GetSafeHtmlFragment("<div style="">aaa</div>")