Cross-site Request Forgery (CSRF) Affecting dotnetnuke.core package, versions [6.0.0, 10.2.2-rc1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Cross-site Request Forgery (CSRF) vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-DOTNET-DOTNETNUKECORE-15990315
- published13 Apr 2026
- disclosed10 Apr 2026
- creditJesseClarkTT
Introduced: 10 Apr 2026
CVE-2026-40305 (opens in a new tab)How to fix?
Upgrade DotNetNuke.Core to version 10.2.2-rc1 or higher.
Overview
DotNetNuke.Core is a references provider to the DotNetNuke.dll to develop extensions for the DNN Platform.
Affected versions of this package are vulnerable to Cross-site Request Forgery (CSRF) in the AddFriend() functionality. An attacker can send a request that forces another user to accept a friend request.