CVE-2026-129170 FileCodeBox 2.2.1 through 2.8.4 Stored XSS via Markdown Preview Parser Error

FileCodeBox 2.2.1 through 2.8.4 contains a stored cross-site scripting vulnerability in renderMarkdownPreview, which returns unsanitized text when the marked parser throws. Unauthenticated attackers can share text with thousands of nested blockquote markers followed by HTML payloads, executing...