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Users can delete old versions of read-only shared files

Low
nickvergessen published GHSA-xwgx-f37p-xh8c Jun 14, 2024

Package

Server (Nextcloud)

Affected versions

>= 26.0.0
>= 27.0.0
>= 28.0.0

Patched versions

26.0.13
27.1.8
28.0.4
Server (Nextcloud Enterprise)
>= 25.0.0
>= 26.0.0
>= 27.0.0
>= 28.0.0
25.0.13.7
26.0.13
27.1.8
28.0.4

Description

Impact

A malicious user was able to send delete requests for old versions of files they only got shared with read permissions.

Patches

It is recommended that the Nextcloud Server is upgraded to 26.0.12 or 27.1.7 or 28.0.3
It is recommended that the Nextcloud Enterprise Server is upgraded to 25.0.13.7 or 26.0.12 or 27.1.7 or 28.0.3

Workarounds

  • Disable Versions app

References

For more information

If you have any questions or comments about this advisory:

Severity

Low
3.5
/ 10

CVSS base metrics

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

CVE ID

CVE-2024-37884

Weaknesses

Credits