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TYPO3-EXT-SA-2016-027: Cross-Site Scripting in extension "HTML5 Video Player" (html5videoplayer)

It has been discovered that the extension "HTML5 Video Player" (html5videoplayer) is susceptible to Cross-Site Scripting.

Release Date: November 11, 2016

Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.

Affected Versions: version 6.7.0 and below

Vulnerability Type: Cross-Site Scripting

Severity: Low

Suggested CVSS v2.0: AV:N/AC:L/Au:S/C:N/I:P/A:N/E:F/RL:O/RC:C (What's that?)

Problem Description: The extension is vulnerable to Cross-Site Scripting as authorized editors can insert data commands by using the url schemes "data:" or "javascript:".

Solution: An updated version 6.7.1 is available from the TYPO3 Extension Manager and at https://typo3.org/extensions/repository/download/html5videoplayer/6.7.1/t3x/. Users of the extension are advised to update the extension as soon as possible.

Credits: Credits go to Stephan Großberndt who discovered and reported the vulnerability.

General advice: Follow the recommendations that are given in the TYPO3 Security Guide. Please subscribe to the typo3-announce mailing list to receive future Security Bulletins via E-mail.