[MEDIUM] Unsafe methods in the Request class

PKSA-34xp-pdgg-w7tn CVE-2015-2309 GHSA-p684-f7fh-jv2j

Affected package: symfony/symfony

Affected version: >=2.0.0,<2.1.0|>=2.1.0,<2.2.0|>=2.2.0,<2.3.0|>=2.3.0,<2.3.27|>=2.4.0,<2.5.0|>=2.5.0,<2.5.11|>=2.6.0,<2.6.6

Reported by:
GitHub, FriendsOfPHP/security-advisories