Description
Nextcloud server is an open source home cloud implementation. In affected versions admins of a server were able to upload a logo or a favicon and to provided a file name which was not restricted and could overwrite files in the appdata directory. Administrators may have access to overwrite these files by other means but this method could be exploited by tricking an admin into uploading a maliciously named file. It is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. Users unable to upgrade should avoid ingesting logo files from untrusted sources.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-ch7f-px7m-hg25
Issue Tracking, Patch x_refsource_misc
https://github.com/nextcloud/server/pull/36095
Scores
CVSS v3
2.4
EPSS
0.0063
EPSS Percentile
70.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-22
CWE-434
Status
published
Products (2)
nextcloud/nextcloud_server
23.0.0 - 23.0.14
nextcloud/nextcloud_server
24.0.0 - 24.0.10
Published
Mar 30, 2023
Tracked Since
Feb 18, 2026