MyBB [url] tag cross-site scripting
| mybb-url-tag-xss (27444) |  Medium Risk |
Description:
MyBB is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability using Unicode-encoded script embedded within [url] tags in a message posting 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.
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of MyBB (1.1.5 or later), available from the MyBB Web site. See References.
References:
- imei Addmimistrator¿s BugBlog Thursday, June 22nd, 2006 : MyBB 1.1.4~function_post.php~XSS Attack In URL tag.
- MyBB Community Forums, 06-28-2006: MyBB 1.1.5 Released.
- MyBB Web site: MyBB Website.
- BID-18702: MyBB Multiple Input Validation Vulnerabilities
- CVE-2006-3761: Cross-site scripting (XSS) vulnerability in inc/functions_post.php in MyBB (aka MyBulletinBoard) 1.0 RC2 through 1.1.4 allows remote attackers to inject arbitrary web script or HTML via a javascript URI with an SGML numeric character reference in the url BBCode tag, as demonstrated using javascript.
- SA20873: MyBB Multiple Vulnerabilities
Platforms Affected:
- MyBB MyBB 1.0 PR2 - 1.1.4
- MyBB MyBB 1.0 RC2 and later
Reported:
Jun 22, 2006
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net