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TITLE:
ModernBill Cross-Site Scripting and "DIR" File Inclusion
Vulnerabilities

SECUNIA ADVISORY ID:
SA32529

VERIFY ADVISORY:
http://secunia.com/advisories/32529/

CRITICAL:
Highly critical

IMPACT:
Cross Site Scripting, System access

WHERE:
>From remote

SOFTWARE:
ModernBill 4.x
http://secunia.com/advisories/product/4899/

DESCRIPTION:
nigh7f411 has reported some vulnerabilities in ModernBill, which can
be exploited by malicious people to conduct cross-site scripting
attacks and compromise a vulnerable system.

1) Input passed to the "DIR" parameter in
include/scripts/export_batch.inc.php,
include/scripts/run_auto_suspend.cron.php,
include/scripts/send_email_cache.php,
include/misc/mod_2checkout/2checkout_return.inc.php, and
include/html/nettools.popup.php is not properly verified before being
used. This can be exploited to include arbitrary files from local or
remote resources.

2) Input passed to the "new_language" parameter in index.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.

The vulnerabilities are reported in versions 4.4.x. Other versions
may also be affected.

SOLUTION:
Upgrade to version 5.

PROVIDED AND/OR DISCOVERED BY:
nigh7f411

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/6916

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