Cross-Site Scripting Vulnerability in DNN Platform by DNN Software
CVE-2025-59821

6.5MEDIUM

Key Information:

Vendor

Dnnsoftware

Status
Dnn.platform
Vendor
CVE Published:
23 September 2025

What is CVE-2025-59821?

DNN Platform, a widely used web content management system, suffers from a Cross-Site Scripting vulnerability due to inadequate handling of user inputs in URL/path processing and template rendering. This flaw allows attackers to inject malicious scripts into user profiles, which are then executed by unsuspecting users' browsers. As a result, attackers can manipulate the page’s HTML and potentially steal sensitive information or hijack user sessions. The vulnerability has been addressed in version 10.1.0 of DNN Platform.

Affected Version(s)

Dnn.Platform < 10.1.0

References

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

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.
CVE-2025-59821 : Cross-Site Scripting Vulnerability in DNN Platform by DNN Software