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CVE-2026-24836

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Date: January 27, 2026

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.

Severity Score

Related Resources (4)

https://github.com/dnnsoftware/Dnn.Platform
https://nvd.nist.gov/vuln/detail/CVE-2026-24836
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-2g5g-hcgh-q3rp
https://www.mend.io/vulnerability-database/CVE-2026-24836

Severity Score

Weakness Type (CWE)

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-79

Top Fix

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Upgrade Version

Upgrade to version DotNetNuke.Core - 9.13.10;DotNetNuke.Core - 10.2.1;DotNetNuke.Core - 9.13.10;DotNetNuke.Core - 10.2.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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