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Code execution in external storage

Platform: ownCloud Server

Versions: 4.5.6,

Date: 1/22/2013

Risk level: High


Due to not sufficiently sanitizing the user input in “settings/personal.php” in ownCloud 4.5.x before 4.5.6 an authenticated remote attackers may be able to execute arbitrary code by entering special crafted PHP code in the mount point settings.

Affected Software

  • ownCloud Server < 4.5.6 (CVE-2013-0204)

Action Taken

It is recommended that all instances are upgraded to ownCloud Server 4.5.6.


The ownCloud team thanks the following people for their research and responsible disclosure of the above advisory:

  • Yuji Kosuga – Vulnerability discovery and disclosure.

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