CVE-2026-40306 — MEDIUM (6.5)

Q: How severe is CVE-2026-40306?

CVE-2026-40306 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-40306?

Check the references section above for vendor advisories and patch information. Affected products include: Dnnsoftware Dotnetnuke.

Vulnerability Description

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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Dnnsoftware	Dotnetnuke	>= 10.0.0, < 10.2.2

Related Weaknesses (CWE)

CWE-330

References

https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2Release Notes
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-2rhw-gw3f-4Vendor Advisory

FAQ

What is CVE-2026-40306?

CVE-2026-40306 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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...

How severe is CVE-2026-40306?

CVE-2026-40306 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-40306?

Check the references section above for vendor advisories and patch information. Affected products include: Dnnsoftware Dotnetnuke.