S9Y Serendipity Remote RSS sidebar Plugin Cross Site Scripting Vulnerability

S9Y Serendipity Remote RSS sidebar Plugin Cross Site Scripting Vulnerability

S9Y Serendipity Remote RSS sidebar plugin is prone to a cross-site scripting vulnerability because it fails to sufficiently sanitize user-supplied data.

Exploiting this issue allows an attacker to execute arbitrary HTML or script code in a user's browser session in the context of an affected site. This may allow the attacker to steal cookie-based authentication credentials and launch other attacks.

This issue affects versions prior to S9Y Serendipity 1.2.1.