CVE-2021-22896

Nextcloud Mail before 1.9.5 suffers from improper access control due to a missing permission check allowing other authenticated users to create mail aliases for other users.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
hackeroneCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 53%
VendorProductVersion
nextcloudnextcloud
𝑥
< 1.9.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/nextcloud/mail/pull/4864
https://github.com/nextcloud/mail/releases/tag/v1.9.5
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jmgp-77jq-fjp3
https://hackerone.com/reports/1129996
https://github.com/nextcloud/mail/pull/4864
https://github.com/nextcloud/mail/releases/tag/v1.9.5
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jmgp-77jq-fjp3
https://hackerone.com/reports/1129996