Kamil Khismatullin, a programmer from Kazan, has found a way to remove any video from YouTube. On his blog, he said that he participated in the Google bounty vulnerability program and found that by sending a simple POST request, you can delete any video - even without authorization on YouTube.
According to Kamil Khismatullin, when he reported the vulnerability to Google, it was early in the morning in San Francisco, but despite this, the vulnerability was fixed within a few hours. For discovering this bug, Google paid the programmer $5,000, the maximum reward for finding this type of vulnerability.
I spent about 6-7 hours researching, but for a couple of hours I struggled with the urge to delete Justin Bieber's entire channel. (English.)