XSS in Files PDF viewer (NC-SA-2020-019)
18th March 2020
Risk level: Low
CVSS v3 Base Score: 3.5 (AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N)
HackerOne report: 819863
An outdated 3rd party library in the Files PDF viewer for Nextcloud Server 18.0.2 caused a Cross-site scripting vulnerability when opening a malicious PDF.
- Nextcloud Server < 18.0.3 (CVE-2020-8155)
The error has been fixed.
It is recommended that the Nextcloud Server is upgraded to 18.0.3.
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.