ExpressionEngine avatar cross-site scripting
| expressionengine-avatar-xss (49359) |  Medium Risk |
Description:
ExpressionEngine is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the system/index.php script. A remote attacker could exploit this vulnerability using the avatar parameter to inject malicious script into a Web page which would be executed in a victim's Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.
*CVSS:
| Base Score: | 4.3 |
| Access Vector: | Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | Partial |
| Availability Impact: | None |
| Temporal Score: | 3.7 |
| Exploitability: | High |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of ExpressionEngine (1.6.7 or later), available from the ExpressionEngine Web site. See References.
References:
- ExpressionEngine Web site: Change Log ¿ ExpressionEngine Documentation, Version 1.6.7.
- Mid-Columbia Information Security Blog, Jan 28, 2009 : NGENUITY-2009-003 - ExpressionEngine Persistent Cross-Site Scripting.
- BID-34193: ExpressionEngine Avtaar Name HTML Injection Vulnerability
- CVE-2009-1070: Cross-site scripting (XSS) vulnerability in system/index.php in ExpressionEngine 1.6.4 through 1.6.6, and possibly earlier versions, allows remote attackers to inject arbitrary web script or HTML via the avatar parameter.
- OSVDB ID: 52845: ExpressionEngine system/index.php avatar Parameter XSS
- SA34379: ExpressionEngine "avatar" Script Insertion Vulnerability
Platforms Affected:
- EllisLab ExpressionEngine 1.6.4
- EllisLab ExpressionEngine 1.6.6
Reported:
Jan 28, 2009
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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 IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.