UpHeron
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Servers and applications

CVE-2023-39959

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.9, 26.0.4, and 27.0.1, unauthenticated users could send a DAV request which reveals whether a calendar or an address book with the given identifier exists for the victim. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server…

Severity
Medium 5.3
Published
10 Aug 2023
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
25.0.9, 26.0.4
Sources
NVD

Affected software

SoftwareAffected versions
NextcloudServers and applications · cpe:a:nextcloud:nextcloud_server
  • From 25.0.0 before 25.0.9
  • From 26.0.0 before 26.0.4
  • Version 27.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-39959
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-39959