Vulnerability in Nextcloud
CVE-2021-41166
The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. An issue in versions prior to 3.17.1 may lead to sensitive information disclosure. An unauthorized app that does not have the otherwise required `MANAGE_DOCUMENTS` permission may view image thumbnails for images it does not have permission to view. Version 3.17.1 contains a patch. There are no known workarounds.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (59.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Nextcloud
- Nextcloud Security-Advisories — versions < 3.17.1
Weakness classification (CWE)
References
- hackerone.com/reports/1358597 (Permissions Required)
- github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4 (Patch, Third Party Advisory)
- github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086 (Patch, Third Party Advisory)
- github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0c (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-41166?
- CVE-2021-41166 is a medium-severity vulnerability in Nextcloud, classified under Incorrect Default Permissions. CVSS score: 4.3/10. Published 2022-01-26.
- How severe is CVE-2021-41166?
- Medium severity. CVSS v3 base score is 4.3 out of 10.