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Vulnerability of TYPO3 HTML5 Video Player: Cross Site Scripting

Synthesis of the vulnerability 

An attacker can trigger a Cross Site Scripting of TYPO3 HTML5 Video Player, in order to run JavaScript code in the context of the web site.
Vulnerable systems: TYPO3 Extensions ~ not comprehensive.
Severity of this threat: 2/4.
Creation date: 14/11/2016.
Références of this weakness: TYPO3-EXT-SA-2016-027, VIGILANCE-VUL-21104.

Description of the vulnerability 

The HTML5 Video Player extension can be installed on TYPO3.

However, it does not filter received data before inserting them in generated HTML documents.

An attacker can therefore trigger a Cross Site Scripting of TYPO3 HTML5 Video Player, in order to run JavaScript code in the context of the web site.
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This weakness alert impacts software or systems such as TYPO3 Extensions ~ not comprehensive.

Our Vigil@nce team determined that the severity of this computer vulnerability note is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this security bulletin.

Solutions for this threat 

TYPO3 HTML5 Video Player: version 6.7.1.
The version 6.7.1 is fixed:
  https://typo3.org/extensions/repository/download/html5videoplayer/6.7.1/t3x/
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