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Multiple XSS vulnerabilities (oC-SA-2013-011)

2nd April 2013

Risk level: Medium

Description

Multiple cross-site scripting (XSS) vulnerabilities in ownCloud 5.0.0 allow remote attackers to inject arbitrary web script or HTML via

  • the "new_name" POST parameter to renameTag.php in /apps/bookmarks/ajax/
    • Commits: 1c63eb1 (stable5)
    • Risk: Medium
    • Note: Successful exploitation of this stored XSS requires the "bookmark" app to be enabled. (enabled by default)
  • multiple unspecified parameters to several files in apps/contacts/ajax/
    • Commits: ae9e5a4 (stable5)
    • Risk: Medium
    • Note: Successful exploitation of this stored XSS requires the "calendar" app to be enabled. (enabled by default)

Affected Software

  • ownCloud Server < 5.0.1 (CVE-2013-1890)

Action Taken

It is recommended that all instances are upgraded to ownCloud Server 5.0.1.

Acknowledgements

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

  • Dylan Irzi - WebSecurityDev - Vulnerability discovery and disclosure.