Cross-site scripting in Nextcloud Server - CVE-2016-9466
Published: March 28, 2017 / Updated: July 18, 2020
Vulnerability identifier: #VU31429
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-9466
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Nextcloud
Affected software:
Nextcloud Server
Nextcloud Server
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
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.
How to mitigate CVE-2016-9466
Install update from vendor's website.
Sources
- https://github.com/nextcloud/gallery/commit/f9ef505c1d60c9041e251682e0f6b3daad952d58
- https://github.com/owncloud/gallery/commit/b3b3772fb9bec61ba10d357bef42b676fa474eee
- https://github.com/owncloud/gallery/commit/dc4887f1afcc0cf304f4a0694075c9364298ad8a
- https://hackerone.com/reports/165686
- https://nextcloud.com/security/advisory/?id=nc-sa-2016-009
- https://owncloud.org/security/advisory/?id=oc-sa-2016-019