Reflected XSS in svg logo generation (NC-SA-2019-018)
2nd August 2019
Risk level: Low
CVSS v3 Base Score: 6.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
CWE: Cross-site Scripting (XSS) - Reflected (CWE-79)
HackerOne report: 605915
Description
A reflected Cross-Site Scripting vunerability was discovered in the svg generation.
Affected Software
- Nextcloud Server < 16.0.2 (CVE-2020-8120)
- Nextcloud Server < 15.0.9 (CVE-2020-8120)
- Nextcloud Server < 14.0.13 (CVE-2020-8120)
Action Taken
The error has been fixed.
Resolution
It is recommended that all instances are upgraded to Nextcloud 16.0.2, 15.0.9 or 14.0.13.
Acknowledgements
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.