Search by 
sabre/dav Security Advisories for 1.6.10 (1)
-
XEE issue that could expose local files or easily trigger a DOS attack.
Affected version: >=1.6.0,<1.6.99|>=1.7.0,<1.7.11|>=1.8.0,<1.8.9
Reported by:
FriendsOfPHP/security-advisories