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Multiple XSS vulnerabilities

Platform: ownCloud Server

Versions: 4.0.9, 4.5.1,

Date: 8/24/2012

Risk level: Medium

CVSS v3 Base Score: 4.3 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)

CWE: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’) (CWE-79)

HackerOne report: 215410


Multiple cross-site scripting (XSS) vulnerabilities in ownCloud 4.5.0 allow remote attackers to inject arbitrary web script or HTML via

  • the filename to to versions.js in apps/files_versions/js/
  • the filename to filelist.js in apps/files/js/
  • the event title to fullcalendar.js in 3rdparty/fullcalendar/js/

Affected Software

  • ownCloud Server < 4.5.1 (CVE-2012-5605)
  • ownCloud Server < 4.0.9 CVE-2012-5605)

Action Taken

It is recommended that all instances are upgraded to ownCloud Server 4.5.1 or 4.0.10.


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

  • Shai Rod – Vulnerability discovery and disclosure.

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