Vulnerability Description
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.
CVSS Score
4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud | < 1.9.5 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/mail/pull/4864PatchThird Party Advisory
- https://github.com/nextcloud/mail/releases/tag/v1.9.5Release NotesThird Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jmgp-7Third Party Advisory
- https://hackerone.com/reports/1129996Third Party Advisory
- https://github.com/nextcloud/mail/pull/4864PatchThird Party Advisory
- https://github.com/nextcloud/mail/releases/tag/v1.9.5Release NotesThird Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jmgp-7Third Party Advisory
- https://hackerone.com/reports/1129996Third Party Advisory
FAQ
What is CVE-2021-22896?
CVE-2021-22896 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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.
How severe is CVE-2021-22896?
CVE-2021-22896 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-22896?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud.