Cross-Site Scripting Vulnerability in W3C Jigsaw Proxy Server

CVE-2002-1053

What is CVE-2002-1053?

The W3C Jigsaw Proxy Server prior to version 2.2.1 is susceptible to a cross-site scripting vulnerability that can be exploited by remote attackers. By crafting a URL that points to a nonexistent host and includes malicious script content, an attacker can cause this script to be executed in the context of the user's browser when the server returns an error message. This security flaw underscores the importance of validating user input and properly handling error messages in web applications to prevent unauthorized script execution.

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