PT-2021-15260 · Nextcloud · Nextcloud Mail

Kesselb

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CVE-2021-22896

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Published

2021-06-11

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Updated

2026-07-12

CVSS v3.1

4.3

Medium

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Name of the Vulnerable Software and Affected Versions Nextcloud Mail versions prior to 1.9.5
Description The issue is related to improper access control due to a missing permission check. This allows other authenticated users to create mail aliases for other users.
Recommendations For versions prior to 1.9.5, update to version 1.9.5 or later to resolve the issue.

Fix

Missing Authorization

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dbugs@ptsecurity.com

Weakness Enumeration

CWE-862

Related Identifiers

BIT-NEXTCLOUD-2021-22896
CVE-2021-22896
GHSA-JMGP-77JQ-FJP3

Affected Products

Nextcloud Mail