CVE-2026-63725: Improper Neutralization of Special Elements used in an OS Command

sysPass's FileBackupService::doBackupFiles in lib/SP/Services/Backup/FileBackupService.php around line 388 builds a tar shell command by string-concatenating the backup directory path $this-path directly into the command line 'tar czf ' . $backupFileApp . ' ' . BASEPATH . ' --exclude "'...