MEDIUM6.1
GHSA-hhqj-cfjx-vj25
Cross site scripting in reveal.js
Quick fix
GHSA-hhqj-cfjx-vj25 — reveal.js: upgrade to the fixed version with the command below.
npm install reveal.js@4.3.0Details
The onmessage event listener in /plugin/notes/speaker-view.html does not check the origin of postMessage before adding the content to the webpage. The vulnerable code allows any origin to postMessage on the browser window and feeds attacker's input to parts using which attacker can execute arbitrary javascript code on victim's browser window hosting reveal.js
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