Cross-site Scripting (XSS) Affecting ember package, versions [1.2.0,1.2.2)[1.3.0,1.3.2)


Severity

Recommended
0.0
low
0
10

CVSS assessment made by Snyk's Security Team. Learn more

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  • Snyk IDSNYK-DOTNET-EMBER-60147
  • published6 Nov 2015
  • disclosed6 Nov 2015
  • creditHyder Ali

Introduced: 6 Nov 2015

CVE NOT AVAILABLE CWE-79  (opens in a new tab)

Overview

Potential XSS Exploit With User-Supplied Data When Binding Primitive Values

In general, Ember.js escapes or strips any user-supplied content before inserting it in strings that will be sent to innerHTML. However, a vulnerability that could lead to unescaped content being inserted into the innerHTML string without being sanitized has been identified.

When a primitive value is used as the Handlebars context, that value is not properly escaped. An example of this would be using the {{each}} helper to iterate over an array of user-supplied strings and using {{this}} inside the block to display each string.

In applications that contain templates whose context is a primitive value and use the {{this}} keyword to display that value, a specially-crafted payload could execute arbitrary JavaScript in the context of the current domain ("XSS").

Impact:

This vulnerability affects applications that contain templates whose context is set to a user-supplied primitive value (such as a string or number) and also contain the {{this}} special Handlebars variable to display the value.

Details

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CVSS Scores

version 3.1