MyBB newthread.php cross-site scripting
| mybb-newthread-xss (25730) |  Medium Risk |
Description:
MyBB (formerly MyBulletinBoard) is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the newthread.php script. A remote attacker could exploit this vulnerability using the username parameter to execute script in a victim's Web browser within the security context of the hosting Web site, allowing the attacker to steal the victim's cookie-based authentication credentials.
Note: In order for this vulnerability to be exploited, MyBB default settings must be changed to allow unregistered users to post new threads.
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of MyBB (1.1.1 or later), available from the MyBB Web site. See References.
References:
- BugTraq Mailing List, Sun Apr 09 2006 - 16:14:08 CDT : MyBB 1.10 'newthread.php' < CrossSiteScripting >.
- MyBB Web site: MyBB Website.
- BID-17427: MyBulletinBoard Newthread.PHP HTML Injection Vulnerability
- CVE-2006-1717: Cross-site scripting (XSS) vulnerability in newthread.php in MyBB (aka MyBulletinBoard) 1.10, when configured to permit new threads by unregistered users, allows remote attackers to inject arbitrary web script or HTML via the username.
- SA19516: MyBB Cross-Site Scripting and Script Insertion
Platforms Affected:
- MyBB MyBB 1.10
Reported:
Apr 09, 2006
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For corrections or additions please email xforce@iss.net