YUI Library addItem() cross-site scripting

yui-additem-xss (65180) The risk level is classified as MediumMedium Risk

Description:

YUI Library is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the addItem method in the Menu widget. A remote attacker could exploit this vulnerability using a field that is added to a menu 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: 3.6
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Uncorroborated

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of YUI (2.9.0 or later), available from the YUI Web site. See References.

References:

  • YUI Library Web Site: YUI Library.
  • YUILibrary Web Site: watch out for stored XSS when using default formatters.
  • YUILibrary Web Site: doc: Default formatters in autocomplete allow for stored XSS.
  • CVE-2010-4710: Cross-site scripting (XSS) vulnerability in the addItem method in the Menu widget in YUI before 2.9.0 allows remote attackers to inject arbitrary web script or HTML via a field that is added to a menu, related to documentation that specifies this field as a text field rather than an HTML field, a similar issue to CVE-2010-4569 and CVE-2010-4570.
  • OSVDB ID: 70719: YUI Menu Widget addItem Method Menu Text-to-HTML Conversion XSS
  • SA43162: YUI Multiple Script Insertion Vulnerabilities

Platforms Affected:

  • YUI Library YUI Library 2.4.0
  • YUI Library YUI Library 2.4.1
  • YUI Library YUI Library 2.5.0
  • YUI Library YUI Library 2.5.1
  • YUI Library YUI Library 2.5.2
  • YUI Library YUI Library 2.6.0
  • YUI Library YUI Library 2.7.0
  • YUI Library YUI Library 2.8.0
  • YUI Library YUI Library 2.8.1

Reported:

May 21, 2010

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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.

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