CVE-2026-34745 Unauthenticated Path Traversal Arbitrary File Write in /api/uploadChunked/public

Fireshare facilitates self-hosted media and link sharing. Prior to version 1.5.3, the fix for CVE-2026-33645 was applied to the authenticated /api/uploadChunked endpoint but was not applied to the unauthenticated /api/uploadChunked/public endpoint in the same file app/server/fireshare/api.py. An...