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Ownership check missing when updating or deleting mail attachments

Moderate
julien-nc published GHSA-xhv7-5mhv-299j Jul 6, 2022

Package

Mail (Nextcloud)

Affected versions

< 1.12.2

Patched versions

1.12.2

Description

Impact

An attacker is able to overwrite the local_message_id for draft attachments or delete them, making it unavailable for the actual sender in both cases. It is not possible to send the attachment to another user or to access it.

Patches

It is recommended that the Nextcloud Mail app is upgraded to 1.12.2 .

Workarounds

No workaround available

References

For more information

If you have any questions or comments about this advisory:

Severity

Moderate
5.4
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

CVE ID

CVE-2022-31131

Weaknesses

Credits