CVE-2016-9466: Nextcloud Server

Medium severity, CVSS 6.1. EPSS: 1.7% chance of exploitation in the next 30 days.

Nextcloud Server before 10.0.1 & ownCloud Server before 9.0.6 and 9.1.2 suffer from Reflected XSS in the Gallery application. The gallery app was not properly sanitizing exception messages from the Nextcloud/ownCloud server. Due to an endpoint where an attacker could influence the error message, this led to a reflected Cross-Site-Scripting vulnerability.

Affected products

• Nextcloud Nextcloud Server: from 10.0.0, before 10.0.1 (fixed in 10.0.1)
• ownCloud ownCloud: from 9.0.0, before 9.0.6 (fixed in 9.0.6); from 9.1.0, before 9.1.2 (fixed in 9.1.2)

Published 2017-03-28. Last modified 2026-06-17.