All vulnerabilities

Servers and applications

CVE-2023-28833

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…

Severity
High 8.8
Published
30 Mar 2023
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
23.0.14, 24.0.10, 25.0.4
Sources
NVD

Affected software

SoftwareAffected versions
NextcloudServers and applications · cpe:a:nextcloud:nextcloud_server
  • From 23.0.0 before 23.0.14
  • From 24.0.0 before 24.0.10
  • From 25.0.0 before 25.0.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-28833
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-28833