RubySec

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CVE-2013-4170 (ember-source): Ember.js Potential XSS Exploit When Binding `tagName` to User-Supplied Data

Ember.js Potential XSS Exploit When Binding `tagName` to User-Supplied Data

Published: July 25, 2013

SECURITY IDENTIFIERS

GEM

ember-source

SEVERITY

CVSS v3.x: 6.1 (Medium)

PATCHED VERSIONS

~> 1.0.0.rc1.1 ~> 1.0.0.rc2.1 ~> 1.0.0.rc3.1 ~> 1.0.0.rc4.1 ~> 1.0.0.rc5.1 >= 1.0.0.rc6.1

DESCRIPTION

In general, Ember.js escapes or strips any user-supplied content before inserting it in strings that will be sent to innerHTML. However, the tagName property of an Ember.View was inserted into such a string without being sanitized. This means that if an application assigns a view's tagName to user-supplied data, a specially-crafted payload could execute arbitrary JavaScript in the context of the current domain ("XSS").

This vulnerability only affects applications that assign or bind user-provided content to tagName.