Information disclosure in Nextcloud
CVE-2021-22912
Nextcloud iOS before 3.4.2 suffers from an information disclosure vulnerability when searches for sharees utilize the lookup server by default instead of only on 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 (70.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.8% 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 iOS App (It.twsweb.nextcloud) — versions Fixed in 3.4.2
Weakness classification (CWE)
References
- hackerone.com/reports/1167919 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/nextcloud/security-advisories/security/advisories/GHSA-m7w4-cvjr-76mh (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-22912?
- CVE-2021-22912 is a medium-severity vulnerability in Nextcloud, classified under Information Disclosure. CVSS score: 6.5/10. Published 2021-06-11.
- How severe is CVE-2021-22912?
- Medium severity. CVSS v3 base score is 6.5 out of 10.