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XSS in search dialogue

Platform: ownCloud Server

Versions: 10.0.2,

Date: 5/31/2017

Risk level: Low

CVSS v3 Base Score: 2.6 (CVSS:AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N)

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


Inadequate escaping lead to XSS vulnerability in the search module. To be exploitable an user has to write or paste malicious content into the search dialogue.

Affected Software

  • ownCloud Server < 10.0.2 (CVE-2017-9338)
  • ownCloud Server < 9.1.6 (CVE-2017-9338)
  • ownCloud Server < 9.0.10 (CVE-2017-9338)
  • ownCloud Server < 8.2.12 (CVE-2017-9338)

Action Taken

Escape output


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

  • Ahsan Khan – Vulnerability discovery and disclosure.

This advisory is licensed CC BY-SA 4.0. Original source: nextcloud.com

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