Nextcloud server 11.0.3DOM XSS vulnerability in search dialogue
Reflected XSS in error pages
Limitation of app specific password scope can be bypassed
Stored XSS in Gallery application
Share tokens for public calendars disclosed
Stored XSS in Gallery application (NC-SA-2017-010)
8th May 2017
Risk level: Low
CVSS v3 Base Score: 3 (AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N)
HackerOne report: 222838
Note that Nextcloud employs a strict Content-Security-Policy preventing exploitation of this XSS issue on modern web browsers.
- Nextcloud Server < 11.0.3 (CVE-2017-0893)
- Nextcloud Server < 10.0.5 (CVE-2017-0893)
- Nextcloud Server < 9.0.58 (CVE-2017-0893)
The vulnerable library has been updated.
The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:
- Lukas Reschke - Nextcloud GmbH (email@example.com) - Vulnerability discovery and disclosure.
This advisory is licensed CC BY-SA 4.0.