broken-source

Download the wasm file and run strings.

strings my_project.wasm

Notice .\new_project_for_ctf_v28095.cpp. The file /wasm/new_project_for_ctf_v28095.cpp has the flag in plaintext:

// ...

__attribute__((noinline))
EMSCRIPTEN_KEEPALIVE char* get_flag( )
{
    /* Wow, epic compiler bug! */
    char flag[64] = "TUCTF{my_c0mp1l3r_0p71m1z35_m3_0u7!}";

   return flag;
}

int main()
{
    printf("Flag: %s\n", get_flag());
    return 0;
}