CVE-2026-40306

MEDIUM

DNN has same HostGUID for all new installs

Title source: cna
STIX 2.1

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.

Scores

CVSS v4 6.9
EPSS 0.0004
EPSS Percentile 11.2%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-330
Status published
Products (1)
dnnsoftware/Dnn.Platform >= 10.0.0, < 10.2.2
Published Apr 17, 2026
Tracked Since Apr 18, 2026