A security issue and a vulnerability has been reported in ownCloud, which can be exploited by malicious people to conduct cross-site scripting attacks and bypass certain security restrictions.
1) An error due to the application not verifying permissions when accessing settings.php can be exploited to change the app configuration for user_webdavauth and user_ldap and subsequently login as arbitrary users.
Successful exploitation of this vulnerability requires the plugins to be enabled.
2) Certain input passed to apps/bookmark/index.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
The security issue and the vulnerability are reported in versions prior to 4.5.5 and 4.0.10.
Solution: Update to version 4.5.5 or 4.0.10
Provided and/or discovered by: 1) Reported by the vendor
2) The vendor credits Yuji Kosuga
Original Advisory: http://owncloud.org/security/advisories/oc-sa-2012-006/
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
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Subject: ownCloud Security Bypass Security Issue and Cross-Site Scripting Vulnerability
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