Release Date: June 15, 2015
Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: version 1.0.0 and below
Vulnerability Type: Arbitrary Code Execution
CVE: not assigned yet
Problem Description: The extension jobfair offers the possibility to upload files. It was discovered that it was possible to upload files with specially crafted file extensions, which could be executed as PHP files on the server when using Apache as web server with mod_mime available (default). An uploaded file is stored in the extension upload folder and can be executed afterwards. Failing to check the uploaded file name against the fileDenyPattern pattern, jobfair is susceptible to arbitrary code execution.
Solution: An updated version 1.0.1 is available from the TYPO3 Extension Manager and at http://typo3.org/extensions/repository/download/jobfair/1.0.1/t3x/. Users of the extension are advised to update the extension as soon as possible.
Credits: Credits go to Torben Hansen who discovered and reported the issue.