TITLE: MercuryBoard "f" Cross-Site Scripting Vulnerability
SECUNIA ADVISORY ID: SA13937
VERIFY ADVISORY: http://secunia.com/advisories/13937/
CRITICAL: Less critical
IMPACT: Cross Site Scripting
WHERE: >From remote
SOFTWARE: MercuryBoard 1.x http://secunia.com/product/4560/
DESCRIPTION: Lostmon has reported a vulnerability in MercuryBoard, which can be exploited by malicious people to conduct cross-site scripting attacks.
Input passed to the "f" parameter in "index.php" isn't properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of a vulnerable site.
The vulnerability has been reported in version 1.0.x and 1.1.x.
SOLUTION: Edit the source code to ensure that input is properly sanitised.
PROVIDED AND/OR DISCOVERED BY: Lostmon
ORIGINAL ADVISORY: http://lostmon.blogspot.com/2005/02/mercuryboard-forumphp-f-variable-xss.html
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