CyberRota Analysis
AI-GeneratedThe vulnerability affects the Magic: The Gathering Arena client on Windows, allowing an attacker to exploit the GoToExternalUrl action to invoke arbitrary URI-scheme handlers through the Windows shell without user interaction. This could lead to the execution of unintended commands or applications on the client system, posing a risk of unauthorized actions. Users and organizations utilizing this game client, particularly those managing sensitive environments, should prioritize addressing this issue to mitigate potential exploitation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
Magic: The Gathering Arena (Windows/Steam client; 2026.59.30.12801.127931.6 and certain later 2026.60.x builds) passes a server-supplied URL from a home-screen carousel GoToExternalUrl action directly to the Windows shell via Application.OpenURL/ShellExecuteW without validating the URI scheme or domain. A hypothetical attacker able to control the carousel content delivered to clients can cause arbitrary registered URI-scheme handlers to be invoked on client hosts with no user interaction. For example, one might expect that the carousel content only has https: URIs, not ms-calculator: URIs.