Vulnerability Description
The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. The Nextcloud Android app uses content providers to manage its data. Prior to version 3.18.1, the providers `FileContentProvider` and `DiskLruImageCacheFileProvider` have security issues (an SQL injection, and an insufficient permission control, respectively) that allow malicious apps in the same device to access Nextcloud's data bypassing the permission control system. Users should upgrade to version 3.18.1 to receive a patch. There are no known workarounds aside from upgrading.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud | < 3.18.1 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/android/commit/627caba60e69e223b0fc89c4cb18eaa76a95PatchThird Party Advisory
- https://github.com/nextcloud/android/security/advisories/GHSA-vjp2-f63v-w479Third Party Advisory
- https://hackerone.com/reports/1358597Permissions Required
- https://github.com/nextcloud/android/commit/627caba60e69e223b0fc89c4cb18eaa76a95PatchThird Party Advisory
- https://github.com/nextcloud/android/security/advisories/GHSA-vjp2-f63v-w479Third Party Advisory
- https://hackerone.com/reports/1358597Permissions Required
FAQ
What is CVE-2021-43863?
CVE-2021-43863 is a vulnerability with a CVSS score of 7.5 (HIGH). The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. The Nextcloud Android app uses content providers to manage its data. Prior to version 3.18.1, the pr...
How severe is CVE-2021-43863?
CVE-2021-43863 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-43863?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud.