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Medium 5.4
TypeBot: Stored XSS via javascript: URI in text bubble links — bot author executes JS on visitors' browsers
TypeBot is a chatbot builder tool. In versions prior to 3.16.0, the Typebot viewer (packages/embeds/js) renders anchor tags from rich text bubble content without filtering the javascript: URI scheme. A bot author can set a link URL to javascript:PAYLOAD, whic…