MyBB email and img BBCode cross-site scripting
| mybb-email-img-bbcode-xss (25615) |  Medium Risk |
Description:
MyBB (formerly MyBulletinBoard) is vulnerable to cross-site scripting, caused by improper validation by the functions_post.php script. A remote attacker could exploit this vulnerability using the EMAIL or IMG BBCode tag 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 (1.1.1 or later), available from the MyBB Web site. See References.
References:
- Bugtraq Mailing List, Fri Apr 07 2006 - 03:21:00 CDT : [KAPDA::#38] - MyBB 1.1.0~functions_post.php~XSS Attack. (IMEI - revised this record to include IMG tag and script name 04/17/2006.)
- BugTraq Mailing List, Sun Apr 02 2006 - 13:15:07 CDT: MyBB 1.10 New CrossSiteScripting.
- Imei's Web App Security Researches Web site: MyBB 1.1.0~functions_post.php~XSS Attack.
- MyBB Web site: MyBB Website.
- BID-17368: MyBulletinBoard Email BBCode Tag HTML Injection Vulnerability
- BID-17413: MyBulletinBoard Multiple HTML Injection Vulnerabilities
- CVE-2006-1625: Cross-site scripting (XSS) vulnerability in inc/functions_post.php in MyBB (aka MyBulletinBoard) 1.10 allows remote attackers to inject arbitrary web script or HTML via a JavaScript event in a BBCode email tag, as demonstrated using the onmousemove event.
- CVE-2006-1716: Cross-site scripting (XSS) vulnerability in inc/functions_post.php in MyBB (aka MyBulletinBoard) 1.10 allows remote attackers to inject arbitrary web script or HTML via a JavaScript event in a BBCode img tag. NOTE: the email vector is already covered by CVE-2006-1625, although it might stem from the same core issue.
- OSVDB ID: 24375: MyBulletinBoard (MyBB) Multiple BBcode Tag XSS
- SA19516: MyBB Cross-Site Scripting and Script Insertion
- VUPEN/ADV-2006-1216: MyBB email BBcode Tag Handling Cross Site Scripting Vulnerability
Platforms Affected:
- MyBB MyBB 1.10
Reported:
Apr 02, 2006
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