🚨 CRITICAL vuln in plank/laravel-mediable <=6.4.0 (CVE-2026-4809): attackers can upload malicious PHP files by spoofing MIME types. No patch yet. Disable client MIME trust & enforce server-side checks! Details: https://radar.offseq.com/threat/cve-2026-4809-cwe-434-unrestricted-upload-of-file--9d4d9e8e #OffSeq #CVE20264809 #Laravel #RCE