BaseFortify

Publication date: 2026-01-28

Last updated on: 2026-02-04

Assigner: GitHub, Inc.

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-01-28

Last Modified

2026-02-04

Generated

2026-07-06

AI Q&A

2026-01-29

EPSS Evaluated

2026-07-05

NVD

CVE-2026-24836

Affected Vendors & Products

Vendor	Product	Version / Range
dnnsoftware	dotnetnuke	From 9.0.0 (inc) to 9.13.10 (exc)
dnnsoftware	dotnetnuke	From 10.0.0 (inc) to 10.2.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability exists in DNN (DotNetNuke) versions starting from 9.0.0 up to versions before 9.13.10 and 10.2.0. It allows extensions to write rich text in log notes that can include scripts. These scripts would then run in the PersonaBar interface when the log notes are displayed, potentially enabling cross-site scripting (XSS) attacks. The issue was fixed in versions 9.13.10 and 10.2.0.

Impact Analysis

This vulnerability can lead to cross-site scripting attacks within the PersonaBar of the DNN platform. An attacker could execute malicious scripts when viewing log notes, potentially leading to unauthorized actions, data theft, or compromise of user sessions. The CVSS score indicates a high impact on confidentiality, integrity, and availability, meaning it can severely affect the security of the system.

Mitigation Strategies

Upgrade DNN (DotNetNuke) to version 9.13.10 or later, or version 10.2.0 or later, as these versions contain the fix for the vulnerability.

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