CVE-2026-34071 Stirling-PDF has Stored Cross Site Scripting (XSS) via EML-to-HTML Export

Stirling-PDF is a locally hosted web application that allows you to perform various operations on PDF files. In version 2.7.3, the /api/v1/convert/eml/pdf endpoint with parameter downloadHtml=true returns unsanitized HTML from the email body with Content-Type: text/html. An attacker who sends a...