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CVE-2026-24838— DotNetNuke.Core Vulnerable to Stored XSS via Module Title

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 9.13.10之前版本和10.2.0之前版本存在跨站脚本漏洞，该漏洞源于模块标题支持富文本，可能导致跨站脚本攻击。

CVSS 9.1 · Critical EPSS 0.22% · P11
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I. Basic Information for CVE-2026-24838

Vulnerability Information
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Vulnerability Title
DotNetNuke.Core Vulnerable to Stored XSS via Module Title
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 versions 9.13.10 and 10.2.0, module title supports richtext which could include scripts that would execute in certain scenarios. Versions 9.13.10 and 10.2.0 contain a fix for the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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 9.13.10之前版本和10.2.0之前版本存在跨站脚本漏洞，该漏洞源于模块标题支持富文本，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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
dnnsoftware Dnn.Platform < 9.13.10 -

II. Public POCs for CVE-2026-24838

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III. Intelligence Information for CVE-2026-24838

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Same Patch Batch · dnnsoftware · 2026-01-27 · 5 CVEs total

CVE-2026-24836 7.7 HIGH DotNetNuke.Core Vulnerable to Stored XSS in Scheduler LogNotes
CVE-2026-24833 7.7 HIGH DotNetNuke.Core Vulnerable to Stored XSS in Module Description
CVE-2026-24837 7.7 HIGH DotNetNuke.Core Vulnerable to Stored XSS in Module Deletion Confirmation Modal
CVE-2026-24784 6.8 MEDIUM DotNetNuke.Core has a potential XSS vulnerability in modules' header and footer

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-24838

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