Cross-site scripting (XSS) vulnerability in uploader.swf in the Uploader component in Yahoo! YUI 3.2.0 through 3.9.1, as used in Moodle through 2.1.10, 2.2.x before 2.2.11, 2.3.x before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.1, and other products, allows remote attackers to inject arbitrary web script or HTML via a crafted string in a URL.

Cross-site scripting (XSS) vulnerability in flashuploader.swf in the Uploader component in Yahoo! YUI 3.5.0 through 3.9.1, as used in Moodle through 2.1.10, 2.2.x before 2.2.11, 2.3.x before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.1, and other products, allows remote attackers to inject arbitrary web script or HTML via a crafted string in a URL.

Cross-site scripting (XSS) vulnerability in io.swf in the IO Utility component in Yahoo! YUI 3.0.0 through 3.9.1, as used in Moodle through 2.1.10, 2.2.x before 2.2.11, 2.3.x before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.1, and other products, allows remote attackers to inject arbitrary web script or HTML via a crafted string in a URL.

Cross-site scripting (XSS) vulnerability in the Flash component infrastructure in YUI 2.4.0 through 2.9.0 allows remote attackers to inject arbitrary web script or HTML via vectors related to charts.swf, a similar issue to CVE-2010-4207.

Cross-site scripting (XSS) vulnerability in the Flash component infrastructure in YUI 2.5.0 through 2.9.0 allows remote attackers to inject arbitrary web script or HTML via vectors related to uploader.swf, a similar issue to CVE-2010-4208.

Bugzilla is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the Flash component infrastructure in YUI script. A remote attacker could exploit this vulnerability using attack vectors related to swfstore.swf to execute script in a victim's Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.