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TITLE:
Woltlab Burning Board register.php Cross-Site Scripting

SECUNIA ADVISORY ID:
SA24386

VERIFY ADVISORY:
http://secunia.com/advisories/24386/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
Woltlab Burning Board 2.x
http://secunia.com/product/131/

DESCRIPTION:
Samenspender has reported two vulnerabilities in Woltlab Burning
Board, which can be exploited by malicious people to conduct
cross-site scripting attacks.

Input passed to the "r_dateformat" and "r_timeformat" parameters in
register.php is not 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 an affected site.

Successful exploitation requires that the target user is not logged
in.

The vulnerabilities are reported in version 2.3.6. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
Samenspender

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