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CVE-2026-24836— DotNetNuke.Core Vulnerable to Stored XSS in Scheduler LogNotes

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及之前版本和10.2.0及之前版本存在跨站脚本漏洞，该漏洞源于扩展程序可在日志注释中写入富文本，其中包含的脚本可能在PersonaBar中显示时运行，可能导致跨站脚本攻击。

CVSS 7.7 · High EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2026-24836

Vulnerability Information
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Vulnerability Title
DotNetNuke.Core Vulnerable to Stored XSS in Scheduler LogNotes
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 9.0.0 and prior to versions 9.13.10 and 10.2.0, extensions could write richtext in log notes which can include scripts that would run in the PersonaBar when displayed. 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:H/PR:H/UI:R/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及之前版本和10.2.0及之前版本存在跨站脚本漏洞，该漏洞源于扩展程序可在日志注释中写入富文本，其中包含的脚本可能在PersonaBar中显示时运行，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 >= 9.0.0, < 9.13.10 -

II. Public POCs for CVE-2026-24836

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III. Intelligence Information for CVE-2026-24836

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

CVE-2026-24838 9.1 CRITICAL DotNetNuke.Core Vulnerable to Stored XSS via Module Title
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-2026-24836

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