CVE-2026-33943

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. In versions 15.10.0 through 20.8.7, a code injection vulnerability in ECMAScriptModuleCompiler allows an attacker to achieve Remote Code Execution RCE by injecting arbitrary JavaScript expressions insi...

CVE-2026-33943 Happy DOM ECMAScriptModuleCompiler: unsanitized export names are interpolated as executable code

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. In versions 15.10.0 through 20.8.7, a code injection vulnerability in ECMAScriptModuleCompiler allows an attacker to achieve Remote Code Execution RCE by injecting arbitrary JavaScript expressions insi...

CVE-2026-33943 Happy DOM ECMAScriptModuleCompiler: unsanitized export names are interpolated as executable code

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. In versions 15.10.0 through 20.8.7, a code injection vulnerability in ECMAScriptModuleCompiler allows an attacker to achieve Remote Code Execution RCE by injecting arbitrary JavaScript expressions insi...

Happy DOM ECMAScriptModuleCompiler: unsanitized export names are interpolated as executable code

Summary A code injection vulnerability in ECMAScriptModuleCompiler allows an attacker to achieve Remote Code Execution RCE by injecting arbitrary JavaScript expressions inside export declarations in ES module scripts processed by happy-dom. The compiler directly interpolates unsanitized content...

GHSA-6Q6H-J7HJ-3R64 Happy DOM ECMAScriptModuleCompiler: unsanitized export names are interpolated as executable code

Summary A code injection vulnerability in ECMAScriptModuleCompiler allows an attacker to achieve Remote Code Execution RCE by injecting arbitrary JavaScript expressions inside export declarations in ES module scripts processed by happy-dom. The compiler directly interpolates unsanitized content...