MTN Group: Reflected XSS on mtnhottseat.mtn.com.gh

hello dear I have found Reflected XSS on mtnhottseat.mtn.com.gh parameters injectable /api/v2/subscribe/; my payload " URL: https://mtnhottseat.mtn.com.gh/api/v2/subscribe/;%22%3E%3Cimg%20src=x%20onerror=alertdocument.domain%3E F1140524 Impact Malicious JavaScript has access to all the same objec...