CVE-2026-44666 HRConvert2: Missing Sanitization enables Unauthenticated Remote Command Execution

HRConvert2 is a self-hosted, drag-and-drop & nosql file conversion server & share tool. Prior to 3.3.8, the sanitizeString function in convertCore.php is missing backtick and tab \t from its strip list. User input then reaches shellexec, where the shell interprets these characters and commands...