CVE-2026-40306— DNN has same HostGUID for all new installs
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I. Basic Information for CVE-2026-40306
Vulnerability Information
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Vulnerability Title
DNN has same HostGUID for all new installs
Source: NVD (National Vulnerability Database)
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用不充分的随机数
Source: NVD (National Vulnerability Database)
Vulnerability Title
DNN 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DNN（又名DotNetNuke）是美国DNN公司的一套由微软支持、基于ASP.NET平台的开源内容管理系统（CMS）。该系统具有易于安装、可扩展、功能丰富等特点。 DNN 10.x.x至10.2.1版本存在安全漏洞，该漏洞源于新安装实例具有相同的主机GUID，可能导致安全问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| dnnsoftware | Dnn.Platform | >= 10.0.0, < 10.2.2 | - |
II. Public POCs for CVE-2026-40306
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · dnnsoftware · 2026-04-17 · 3 CVEs total
| CVE-2026-40321 | 8.1 HIGH | DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload |
| CVE-2026-40305 | 4.3 MEDIUM | DNN has Force Friend Request Acceptance |
IV. Related Vulnerabilities
Same product: Dnn.Platform
- CVE-2026-40321
DotNetNuke.Core has stored cross-site-scripting (XSS) via SV - CVE-2026-40305
DNN has Force Friend Request Acceptance - CVE-2026-24838
DotNetNuke.Core Vulnerable to Stored XSS via Module Title - CVE-2026-24837
DotNetNuke.Core Vulnerable to Stored XSS in Module Deletion - CVE-2026-24836
DotNetNuke.Core Vulnerable to Stored XSS in Scheduler LogNot
Same vendor: dnnsoftware
- CVE-2026-40321
DotNetNuke.Core has stored cross-site-scripting (XSS) via SV - CVE-2026-40305
DNN has Force Friend Request Acceptance - CVE-2020-37103
DotNetNuke 9.5 - Persistent Cross-Site Scripting - CVE-2026-24838
DotNetNuke.Core Vulnerable to Stored XSS via Module Title - CVE-2026-24837
DotNetNuke.Core Vulnerable to Stored XSS in Module Deletion
Same weakness: CWE-330
- CVE-2026-7847
chatchat-space Langchain-Chatchat Uploaded File openai_route - CVE-2026-40975
VMware Spring Boot 安全特征问题漏洞 - CVE-2026-40496
FreeScout has Predictable Attachment Token that Allows Unaut - CVE-2026-33710
Chamilo LMS has Weak REST API Key Generation (Predictable) - CVE-2026-34511
OpenClaw < 2026.4.2 - PKCE Verifier Exposure via OAuth State
V. Comments for CVE-2026-40306
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