Medium severity · published Jun 1, 2021
CVE-2021-32652
Nextcloud Mail is a mail app for the Nextcloud platform
4.3
CVSS
1.1%
EPSS
No
On KEV
Description
Nextcloud Mail is a mail app for the Nextcloud platform. A missing permission check in Nextcloud Mail before 1.4.3 and 1.8.2 allows another authenticated users to access mail metadata of other users. Versions 1.4.3 and 1.8.2 contain patches for this vulnerability; no workarounds other than the patches are known to exist.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mail · Nextcloud
before 1.4.3; 1.5.5 before 1.8.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-32652
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-32652
Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mxx2-6rg9-v2vc
Exploit
https://hackerone.com/reports/1094063
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