CVE-2026-44729 Twenty: Stored Cross-Site Scripting via Unsanitized File Serving (Missing Content-Type/Content-Disposition Headers)

Twenty is an open source CRM. In 1.18.0 and earlier, the file serving endpoints in Twenty CRM at /files/ and /file/:fileFolder/:id serve uploaded files using fileStream.piperes without setting any Content-Type, Content-Disposition, or X-Content-Type-Options response headers. This allows an...