CVE-2026-40306: DNN: Same HostGUID for all new installs

Executive brief

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. All new installations of DNN 10.x.x - 10.2.1 have the same Host GUID. This does not affect upgrades from 9.x.x. Version 10.2.2 patches the issue.

Affected products

• NuGet DotNetNuke.Core

References

• https://api.github.com/users/meetmandeep
• https://github.com/meetmandeep
• https://api.github.com/users/meetmandeep/gists%7B/gist_id%7D
• https://api.github.com/users/meetmandeep/repos
• https://avatars.githubusercontent.com/u/29958123?v=4
• https://api.github.com/users/meetmandeep/events%7B/privacy%7D