CVE-2026-42455 LinkWarden: Stored XSS via Client-Side Archive Upload (Unsanitized HTML served from same origin)

Linkwarden is a self-hosted, open-source collaborative bookmark manager to collect, organize and archive webpages. In versions 2.14.0 and prior, the archive upload endpoint POST /api/v1/archives/linkId?format=4 accepts HTML files text/html without sanitizing JavaScript content. When the archive i...