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CVE-2025-59821— DNN vulnerable to Reflected Cross-Site Scripting (XSS) using url to profile

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 10.1.0之前版本存在跨站脚本漏洞，该漏洞源于URL或路径处理和模板渲染未充分中和HTML特殊字符，可能导致跨站脚本攻击。

CVSS 6.5 · Medium EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-59821

Vulnerability Information
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Vulnerability Title
DNN vulnerable to Reflected Cross-Site Scripting (XSS) using url to profile
Source: CVE Program / CVE List V5
Vulnerability Description
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, DNN’s URL/path handling and template rendering can allow specially crafted input to be reflected into a user profile that is returned to the browser. In these cases, the application does not sufficiently neutralize or encode characters that are meaningful in HTML, so an attacker can cause a victim’s browser to interpret attacker-controlled content as part of the page’s HTML. This issue has been patched in version 10.1.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
DNN 跨站脚本漏洞
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 10.1.0之前版本存在跨站脚本漏洞，该漏洞源于URL或路径处理和模板渲染未充分中和HTML特殊字符，可能导致跨站脚本攻击。
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 < 10.1.0 -

II. Public POCs for CVE-2025-59821

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III. Intelligence Information for CVE-2025-59821

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Same Patch Batch · dnnsoftware · 2025-09-23 · 6 CVEs total

CVE-2025-59545 9.1 CRITICAL DNN Vulnerable to Stored Cross-Site Scripting (XSS) in the Prompt module
CVE-2025-59539 6.3 MEDIUM DNN affected by Stored Cross-Site Scripting (XSS) in Profile Biography field
CVE-2025-59547 5.3 MEDIUM DNN's CKEditor File Uploader functionality vulnerable through Unicode obfuscation
CVE-2025-59546 2.4 LOW DNN Vulnerable to Stored XSS Using Backend Admin Credentials
CVE-2025-59548 DNN Vulnerable to Reflected Cross-Site Scripting (XSS) in CKEditor File Browser

IV. Related Vulnerabilities

Same product: Dnn.Platform
Same vendor: dnnsoftware
Same weakness: CWE-79

V. Comments for CVE-2025-59821

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