GHSA-hhqj-cfjx-vj25
Cross site scripting in reveal.js
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
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
References
External links from the advisory. They lead to third-party sites.