CVE-2026-40305— DNN has Force Friend Request Acceptance
Quick assessment
Affected
dnnsoftware Dnn.Platform
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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 6.0.0至10.2.2之前版本存在安全漏洞，该漏洞源于friends功能存在缺陷，可能导致强制接受好友请求。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-40305
Vulnerability Information
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Vulnerability Title
DNN has Force Friend Request Acceptance
Source: CVE Program / CVE List V5
Vulnerability Description
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Starting in version 6.0.0 and prior to version 10.2.2, in the friends feature, a user could craft a request that would force the acceptance of a friend request on another user. Version 10.2.2 patches the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
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 6.0.0至10.2.2之前版本存在安全漏洞，该漏洞源于friends功能存在缺陷，可能导致强制接受好友请求。
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 | >= 6.0.0, < 10.2.2 | - |
|
II. Public POCs for CVE-2026-40305
| # | 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-2026-40306 | DNN has same HostGUID for all new installs |
IV. Related Vulnerabilities
Same product: Dnn.Platform
-
CVE-2026-40321
DotNetNuke.Core has stored cross-site-scripting (XSS) via SV -
CVE-2026-40306
DNN has same HostGUID for all new installs -
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-2026-40306
DNN has same HostGUID for all new installs -
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-285
-
CVE-2026-105121
OpenAM before 16.1.3 Improper Authorization in Delegated Ses -
CVE-2026-105119
OpenAM before 16.1.3 PKCE Enforcement Bypass via OAuth 2.0 H -
CVE-2026-103858
MISP Incomplete Thread Authorization Allows Unauthorized Rea -
CVE-2026-103532
immich-app Immich Shared Link Preview access.ts checkSharedL -
CVE-2026-93547
Missing Authorization Check in Vaadin Spreadsheet Allows Cel
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