CVE-2026-40321

HIGH EPSS 93.8%
Published Apr 17, 20262mo ago · Modified Jun 17, 20262w ago
8.0 CVSS 3.1
High
Find Similar
Published Apr 17, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.2.2, a user could upload a specially crafted SVG file that could include scripts that can target both authenticated and unauthenticated DNN users. The impact is increased if the scripts are run by a power user. Version 10.2.2 patches the issue.

CVSS Details

Base Score
8.0
Exploitability
1.3
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
93.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-87

Affected Products 1

VendorProductVersionRange
dnnsoftwaredotnetnuke* <10.2.2

References 2

  • github.com https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2
    Release Notes
  • github.com https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.