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TITLE:
Hiox Guestbook "from" PHP Code Execution Vulnerability

SECUNIA ADVISORY ID:
SA24835

VERIFY ADVISORY:
http://secunia.com/advisories/24835/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Hiox Guestbook 4.x
http://secunia.com/product/13903/

DESCRIPTION:
Dj7xpl has discovered a vulnerability in Hiox Guestbook, which can be
exploited by malicious people to compromise a vulnerable system.

Input passed to the "from" parameter in added.php is not properly
sanitised before it is written to the gb.php file. This can be
exploited to execute arbitrary PHP code.

The vulnerability is confirmed in version 4.0. Other versions may
also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
Dj7xpl

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/3697

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