CVE-2026-40305

Name: CVE-2026-40305
Creator: NVD / NIST
Published: 2026-04-17T22:16:32.37+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2026-40305 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Starting in version 6.0.0 and prior to version 10.2.2, in the friends feature, a user could craft a request that would force the acceptance of a friend request on another user. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Starting in version 6.0.0 and prior to version 10.2.2, in the friends feature, a user could craft a request that would force the acceptance of a friend request on another user. Version 10.2.2 patches the issue.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.18%

8.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-285

Affected Software

Vendor	Product	Versions
Dnnsoftware	Dotnetnuke	>= 6.0.0, < 10.2.2

References

https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2Release Notes
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-fpj4-9qhx-5m6mVendor Advisory

Timeline

Published: Apr 17, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-40305?

How severe is CVE-2026-40305?

CVE-2026-40305 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2026-40305?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-40305?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST