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 inside `export { }` dec…
Severity high: primary CNA CVSS 8.8 v3.1 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-03-27T21:15:19.186Z. Updated 2026-07-15T01:05:08.620Z.