Description
Content injected to PDF rendering contexts could, in many places, include HTML content including <img> tags. If the src attribute of these images pointed to an URL, the PDF rendering engine would download the image from that place and display it, thereby leaking information about the rendering server and possibly creating an SSRF vector in the local network.
Problem types
CWE-80 Improper neutralization of Script-Related HTML tags in a web page (basic XSS)
Product status
Any version before 2026.3.4
2026.4.0 (python) before 2026.4.4
2026.5.0 (python) before 2026.5.2
Credits
Rokkam Vamshi
References
pretix.eu/about/en/blog/20260625-release-2026-5-2/