CVE-2026-42451: Improper Neutralization of Input During Web Page Generation

Grimmory is a self-hosted digital library. Prior to version 2.3.1, a stored cross-site scripting XSS vulnerability in Grimmory's browser-based EPUB reader allows an attacker to embed arbitrary JavaScript in a crafted EPUB file. When a victim opens the book, the script executes in their browser wi...