CVE-2020-37103 MEDIUM

CVE-2020-37103: DotNetNuke 9.5 - Persistent Cross-Site Scripting

Vendor Dnnsoftware
Product DotNetNuke
Weakness CWE-79 · XSS
Published February 3, 2026
Last update May 14, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

DotNetNuke 9.5 contains a persistent cross-site scripting vulnerability that allows normal users to upload malicious XML files with executable scripts through journal tools. Attackers can upload XML files with XHTML namespace scripts to execute arbitrary JavaScript in users' browsers, potentially bypassing CSRF protections and performing more damaging attacks.

Key dates

02Disclosure timeline

February 3, 2026 CVE published
May 14, 2026 Record updated