Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Talk application was vulnerable to a stored Cross-Site Scripting (XSS) vulnerability. For exploitation, a user would need to right-click on a malicious file and open the file in a new tab. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. It is recommended that the Nextcloud Talk application is upgraded to patched versions 10.0.7, 10.1.4, 11.1.2, 11.2.0 or 12.0.0. As a workaround, use a browser that has support for Content-Security-Policy.
References
Link | Resource |
---|---|
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xhxq-f4vg-jw5g | Third Party Advisory |
https://github.com/nextcloud/spreed/pull/542 | Third Party Advisory |
https://hackerone.com/reports/1135481 | Permissions Required Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
No history.
Information
Published : 2021-11-15 19:15
Updated : 2024-02-28 18:48
NVD link : CVE-2021-39222
Mitre link : CVE-2021-39222
CVE.ORG link : CVE-2021-39222
JSON object : View
Products Affected
nextcloud
- talk