Stored XSS in markdown file with Nextcloud Talk using Internet Explorer (NC-SA-2021-002)
18th November 2020
Risk level: Low
CVSS v3 Base Score: 3 (AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N)
HackerOne report: 1023787
- Nextcloud Server < 20.0.2 (CVE-2020-8294)
- Nextcloud Server < 19.0.5 (CVE-2020-8294)
- Nextcloud Server < 18.0.11 (CVE-2020-8294)
The error has been fixed.
It is recommended that the Nextcloud Server is upgraded to 20.0.2.
The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:
This advisory is licensed CC BY-SA 4.0.