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.
References (2)
Core 2
Core References
Third Party Advisory x_refsource_confirm
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mxx2-6rg9-v2vc
Exploit, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/1094063
Scores
CVSS v3
8.8
EPSS
0.0046
EPSS Percentile
64.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-284
CWE-862
Status
published
Products (1)
nextcloud/mail
< 1.4.3
Published
Jun 01, 2021
Tracked Since
Feb 18, 2026