Vulnerability Description
Nextcloud text is a collaborative document editing using Markdown built for the nextcloud server. Due to an issue with the Nextcloud Text application, which is by default shipped with Nextcloud Server, an attacker is able to access the folder names of "File Drop". For successful exploitation an attacker requires knowledge of the sharing link. It is recommended that users upgrade their Nextcloud Server to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the Nextcloud Text application in the application settings.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud Server | < 20.0.14 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-26c8-3Third Party Advisory
- https://github.com/nextcloud/text/pull/1884PatchThird Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-26c8-3Third Party Advisory
- https://github.com/nextcloud/text/pull/1884PatchThird Party Advisory
FAQ
What is CVE-2021-41233?
CVE-2021-41233 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Nextcloud text is a collaborative document editing using Markdown built for the nextcloud server. Due to an issue with the Nextcloud Text application, which is by default shipped with Nextcloud Server...
How severe is CVE-2021-41233?
CVE-2021-41233 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-41233?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud Server.