Security Advisory

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CSRF token leakage (oC-SA-2013-027)

14th May 2013

Risk level: Medium


The configuration loader in ownCloud 5.0.x before 5.0.6 includes private data such as CSRF tokens in a JavaScript file, which allows remote attackers to obtain sensitive information.

Affected Software

  • ownCloud Server < 5.0.6 (CVE-2013-2086)

Action Taken

It is recommended that all instances are upgraded to ownCloud Server 5.0.6.


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

  • Lukas Reschke - ownCloud Inc. ( - Vulnerability discovery and disclosure.