CVE-2021-43863

High

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.

SeverityHigh
CVSS7.5
Exploit probability79. percentile1.9%
ProductNextcloud
PublishedJan 25, 2022
First seenJan 25, 2022
Weakness typeCWE-89SQL injection

How to fix

Update
  • nextcloud nextcloud3.18.1 or later

Affected products

ProductAffected versionsFixed in
nextcloud nextcloudv < 3.18.13.18.1

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