All vulnerabilities

Servers and applications

CVE-2023-45151

Nextcloud server is an open source home cloud platform. Affected versions of Nextcloud stored OAuth2 tokens in plaintext which allows an attacker who has gained access to the server to potentially elevate their privilege. This issue has been addressed and users are recommended to upgrade their Nextcloud Server to version 25.0.8, 26.0.3 or 27.0.1. There are no known workarounds for this…

Severity
High 8.8
Published
16 Oct 2023
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
25.0.8, 26.0.3
Sources
NVD

Affected software

SoftwareAffected versions
NextcloudServers and applications · cpe:a:nextcloud:nextcloud_server
  • From 25.0.0 before 25.0.8
  • From 26.0.0 before 26.0.3
  • Version 27.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-45151
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-45151