Information disclosure in Nextcloud
CVE-2021-22905
Nextcloud Android App (com.nextcloud.client) before v3.16.0 is vulnerable to information disclosure due to searches for sharees being performed by default on the lookup server instead of only using the local Nextcloud server unless a global search has been explicitly chosen by the user.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.014 (70.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Nextcloud
- Nextcloud Android App (Com.nextcloud.client) — versions Fixed in 3.16.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-22v9-q3r6-x7cj (Third Party Advisory)
- hackerone.com/reports/1167916 (Exploit, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2021-22905?
- CVE-2021-22905 is a medium-severity vulnerability in Nextcloud, classified under Information Disclosure. CVSS score: 6.5/10. Published 2021-06-11.
- How severe is CVE-2021-22905?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2021-22905 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.