CVE-2025-27608

Arduino IDE 2.x is an IDE based on the Theia IDE framework and built with Electron. A Self Cross-Site Scripting XSS vulnerability has been identified within the Arduino-IDE prior to version v2.3.5. The vulnerability occurs in the Additional Board Manager URLs field, which can be found in the...

CVE-2025-27608 Self Cross-Site Scripting in Arduino IDE

Arduino IDE 2.x is an IDE based on the Theia IDE framework and built with Electron. A Self Cross-Site Scripting XSS vulnerability has been identified within the Arduino-IDE prior to version v2.3.5. The vulnerability occurs in the Additional Board Manager URLs field, which can be found in the...

CVE-2025-27608

Arduino IDE 2.x (Electron-based Theia-derived IDE) contains a Self-XSS vulnerability in the Additional Board Manager URLs field found under Preferences → Settings. In vulnerable releases prior to 2.3.5, input in this field is displayed to users via a notification tooltip without proper output enc...