CVE-2026-77939 Flextype CMS 1.0.0-dev RCE via POST /api/v1/query Endpoint

Flextype CMS through v1.0.0-dev contains an expression language injection vulnerability that allows authenticated attackers with a valid API token to read arbitrary files by passing unsanitized user-supplied input to the Symfony ExpressionLanguage engine via the POST /api/v1/query endpoint...