Dotnetnuke 9.0.x < 9.13.10 / 10.0.x < 10.02.00 Stored XSS in Scheduler LogNotes (CVE-2026-24836)

high Nessus Plugin ID 297828

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Synopsis

An ASP.NET application running on the remote web server is affected by a vulnerability.

Description

According to its self-reported version, the instance of Dotnetnuke running on the remote web server is 9.0.x prior to 9.13.10 or 10.0.x prior to 10.02.00. It is, therefore, affected by a vulnerability.

- 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. (CVE-2026-24836)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Dotnetnuke version 10.02.00 or later.

Plugin Details

Severity: High

ID: 297828

File Name: dotnetnuke_CVE-2026-24836.nasl

Version: 1.1

Type: remote

Family: CGI abuses

Published: 2/4/2026

Updated: 2/4/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:H/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2026-24836

CVSS v3

Risk Factor: High

Base Score: 7.6

Temporal Score: 6.6

Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:dnnsoftware:dotnetnuke, cpe:/a:dotnetnuke:dotnetnuke

Required KB Items: installed_sw/DNN

Excluded KB Items: Settings/disable_cgi_scanning

Exploit Ease: No known exploits are available

Patch Publication Date: 1/27/2026

Vulnerability Publication Date: 1/27/2026

Reference Information

CVE: CVE-2026-24836

Detections

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