Multiple Cross Site Scripting ( #XSS ) Vulnerabilities in Forbes
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Ucha Gobejishvili (longrifle0x) , A Georgian Security Researcher Discover two Cross Site Scripting ( XSS ) Vulnerabilities on the Official website of Forbes, an American publishing and media company. Cross-Site Scripting occurs when an attacker can send a malicious script to a different user by relaying the script from an otherwise trusted or innocuous server. These flaws are extensive on the Web and allow an attacker to place malicious code that can execute attacks against other users in the security context of the web servers of the trusted host.

1.) First Vulnerable Link : Click Here
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2.) Second Vulnerable Link : Click Here
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Cross-Site Scripting typically involves executing commands in a user's browser to display unintended content, or with the intent of stealing the user's login credentials or other personal information. This information can then be used by the attacker to access web sites and services for which the compromised credentials are valid (e.g., identity theft). In some cases, the attacker might be able to use this information to hijack or further compromise the user's HTTP sessions.

Recommendation for Forbes, Please Ensure that your web application validates all forms, headers, cookie fields, hidden fields, and parameters, and converts scripts and script tags to a non-executable form. Always filter data originating from outside your application by disallowing the use of special characters. Only display output to the browser that has been sufficiently encoded. When possible, avoid simple character filters and write routines that validate user input against a set of allowed, safe characters. Use regular expressions to confirm that data conforms to the allowed character set. This enhances application security and makes it harder to bypass input validation routines.

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