MailBee WebMail Pro - Cross Site Scripting Issue

2007.04.19
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

[MajorSecurity Advisory #44]MailBee WebMail Pro - Cross Site Scripting Issue Details ======= Product: MailBee WebMail Pro 3.4 Security-Risk: moderated Remote-Exploit: yes Vendor-URL: http://www.afterlogic.com Vendor-Status: informed Advisory-Status: published Credits ============ Discovered by: David Vieira-Kurz http://www.majorsecurity.de Original Advisory: ============ http://www.majorsecurity.de/index_2.php?major_rls=major_rls44 Introduction ============ "MailBee WebMail Pro is a web based mail client built as a set of ASP scripts." [from http://www.afterlogic.com] More Details ============ Cross Site Scripting: Input passed directly to the "username" parameter in "check_login.asp" 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. Example: /check_login.asp?email=>"><script>alert(15031988)</script> Workaround ============= Edit the source code to ensure that input is properly sanitised. You should work with "htmlspecialchars()" or "htmlentities()" php-function to ensure that html tags are not going to be executed. Example: $email = htmlspecialchars($_POST['email']); $test = htmlentities($_GET('test')); ?> History/Timeline ================ 05.04.2007 discovery of the vulnerability 06.04.2007 additional tests with other versions 08.04.2007 contacted the vendor 09.04.2007 vendor confirmed the bugs 13.04.2007 advisory is written 13.04.2007 advisory released MajorSecurity ======= MajorSecurity is a non-profit German penetration testing and security research project which consists of only one person at the present time. http://www.majorsecurity.de/


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