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Stored XSS in Scheduler LogNotes

High
valadas published GHSA-2g5g-hcgh-q3rp Jan 27, 2026

Package

nuget DotNetNuke.Core (NuGet)

Affected versions

>=9.0.0,<=9.13.9
>=10.0.0,<10.2.0

Patched versions

9.13.10
10.02.00

Description

Extensions could write richtext in log notes which can include scripts that would run in the PersonaBar when displayed.

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

CVE ID

CVE-2026-24836

Weaknesses

No CWEs

Credits