CVE-2021-43863
moderate-risk
Published 2022-01-25
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.
Do I need to act?
-
0.25% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (6)
Third Party Advisory
https://github.com/nextcloud/android/security/advisories/GHSA-vjp2-f63v-w479
Permissions Required
https://hackerone.com/reports/1358597
Third Party Advisory
https://github.com/nextcloud/android/security/advisories/GHSA-vjp2-f63v-w479
Permissions Required
https://hackerone.com/reports/1358597
32
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal