thx @_sy1vi3 for surprise ragebaiting me with first class literally at the last minute on top of paying for my DEF CON flights, on top of many other amazing folk who helped me out throughout the week
Type text into Wikipedia. Get the shell's output back on the page.
A bug introduced 22 years ago.
Still alive in the wild, until it was found by V12.
Here's how EasyTimeline allowed arbitrary code execution (RCE) directly from wikitext.
