Cross-Site Scripting in DNN CMS Before Version 9.13.10 and 10.2.0
CVE-2026-24838

9.1CRITICAL

Key Information:

Vendor

Dnnsoftware

Status
Dnn.platform
Vendor
CVE Published:
27 January 2026

What is CVE-2026-24838?

DNN, an open-source web content management platform within the Microsoft ecosystem, is susceptible to a cross-site scripting vulnerability in versions prior to 9.13.10 and 10.2.0. The issue arises from the module title functionality, which allows rich text input that could be exploited to include executable scripts under certain conditions. Upgrading to the specified versions or later mitigates this vulnerability effectively.

Affected Version(s)

Dnn.Platform < 9.13.10 < 9.13.10

Dnn.Platform >= 10.0.0, < 10.2.0 < 10.0.0, 10.2.0

References

https://github.com/dnnsoftware/Dnn.Platform/security/advi...
x_refsource_CONFIRM

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.