SandboxJS: Sandbox integrity escape

Summary SandboxJS blocks direct assignment to global objects for example Math.random = ..., but this protection can be bypassed through an exposed callable constructor path: this.constructor.calltarget, attackerObject. Because this.constructor resolves to the internal SandboxGlobal function and...

GHSA-2GG9-6P7W-6CPJ SandboxJS: Sandbox integrity escape

Summary SandboxJS blocks direct assignment to global objects for example Math.random = ..., but this protection can be bypassed through an exposed callable constructor path: this.constructor.calltarget, attackerObject. Because this.constructor resolves to the internal SandboxGlobal function and...