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Medium

DNN: Same HostGUID for all new installs

  • Disclosed: 10.04.2026
  • Updated: 11.10.2026 11:23

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 software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
.NET (NuGet) DotNetNuke.Core >= 10.0.0, < 10.2.2 10.2.2

References

CVSS score 6.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness (CWE)
CWE-330
Platform
.NET (NuGet)
Package
DotNetNuke.Core
Disclosed
10.04.2026
Updated
11.10.2026 11:23

Sources and licenses

OSV / GitHub Advisory Database - GHSA-2rhw-gw3f-477j - CC BY 4.0

Vulnerability history: DotNetNuke.Core

All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (36) in the archive
Total entries
36
First → latest
10.2018 04.2026
Without a fix
3
Exploited in attacks
3

Severity breakdown

  • Critical 3
  • High 10
  • Medium 21
  • Low 2

Disclosures per year

Severity:
  1. DNN: Same HostGUID for all new installs this entry
    Medium · 6.5 CVE-2026-40306 >= 10.0.0, < 10.2.2 10.2.2
  2. DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload
    High · 8.0 CVE-2026-40321 < 10.2.2 10.2.2
  3. DotNetNuke.Core Vulnerable to Stored XSS via Module Title
    Critical · 9.1 CVE-2026-24838 < 9.13.10, >= 10.0.0, < 10.2.0 9.13.10, 10.2.0
  4. DotNetNuke.Core Vulnerable to Stored XSS in Module Deletion Confirmation Modal
    High · 7.6 CVE-2026-24837 >= 9.0.0, <= 9.13.9, >= 10.0.0, < 10.2.0 10.2.0
  5. DotNetNuke.Core Vulnerable to Stored XSS in Scheduler LogNotes
    High · 7.6 CVE-2026-24836 >= 9.0.0, <= 9.13.9, >= 10.0.0, < 10.02.0 10.02.0
  6. DNN Vulnerable to Stored Cross-Site Scripting (XSS) in the Prompt module
    Critical · 9.0 CVE-2025-59545 < 10.1.0 10.1.0
  7. DNN Path Traversal via Zip Slip
    High · 8.8 CVE-2020-5187 < 9.5.0 9.5.0
  8. Inadequate Encryption Strength in DotNetNuke
    High · 7.5 Exploited in attacks CVE-2018-15811 >= 9.2.0, < 9.2.2 9.2.2
  9. Insufficient Entropy in DotNetNuke
    High · 7.5 CVE-2018-15812 >= 9.2.0, < 9.2.2 9.2.2
  10. Insufficient Entropy in DotNetNuke
    High · 7.5 CVE-2018-18326 < 9.3.0 9.3.0
  11. Inadequate Encryption Strength in DotNetNuke
    High · 7.5 Exploited in attacks CVE-2018-18325 < 9.3.0 9.3.0
  12. DNN (aka DotNetNuke) has Remote Code Execution via a cookie
    High · 8.8 Exploited in attacks CVE-2017-9822 < 9.1.1 9.1.1
  13. The installation wizard in DotNetNuke (DNN) allows privilege escalation
    Critical · 9.8 CVE-2015-2794 < 7.4.1 7.4.1
  14. High severity vulnerability that affects DotNetNuke.Core
    High · 7.5 CVE-2017-0929 < 9.2.0 9.2.0

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