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TITLE:
realGuestbook SQL Injection and Cross-Site Scripting Vulnerabilities

SECUNIA ADVISORY ID:
SA24602

VERIFY ADVISORY:
http://secunia.com/advisories/24602/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting, Manipulation of data

WHERE:
>From remote

SOFTWARE:
realGuestbook 5.x
http://secunia.com/product/13715/

DESCRIPTION:
Some vulnerabilities have been discovered in realGuestbook, which can
be exploited by malicious people to conduct SQL injection or
cross-site scripting attacks.

1) Input passed to the "name", "email", "homepage" and "text"
parameters in save_entry.php and potentially other parameters and
other files is not properly sanitised before being used in SQL
queries. This can be exploited to manipulate SQL queries by injecting
arbitrary SQL code.

2) Input passed to the "bg_color_1", "fs_menu", "fc_menu", "ff_menu",
"bg_color_2", "fs_normal", "fc_normal" and "ff_normal" parameters in
welcome_admin.php and potentially other parameters and other files
are not properly sanitised before being returned to a 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 "register_globals" is enabled.

The vulnerabilities are confirmed in version 5.01. Other versions may
also be affected.

SOLUTION:
Use another product.

PROVIDED AND/OR DISCOVERED BY:
1) Trew and an anonymous person.
2) An anonymous person.

ORIGINAL ADVISORY:
http://trew.icenetx.net/toolz/advisory-realGuestbook_V5-en.txt

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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