Cross-site Scripting (XSS) - Generic in mailtrain-org/mailtrain

✍️ Description Stored xss via campaign file upload 🕵️‍♂️ Proof of Concept 1. First goto http://localhost:3000/campaigns and open a campaign . 2.Now in linux create a file with bellow name. 3. Now upload the created file in the above capaign http://localhost:3000/campaigns/1/files and see xss is...