CVE-2026-73250 Notepad++: Install-time PowerShell command injection through installation path

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the Notepad++ Windows 11 x64 and ARM64 installer passes the attacker-influenced installation directory $INSTDIR from PowerEditor/installer/nppSetup.nsi into a PowerShell -Command string used by RegisterMSIX to invoke...

CVE-2026-73250

Notepad++ prior to 8.9.7 on Windows 11 x64/ARM64: the installer passes the attacker-controlled installation directory into a PowerShell -Command string used by RegisterMSIX to invoke Add-AppxPackage, enabling PowerShell subexpression syntax (e.g., $()) in the path to execute commands in the insta...