CVE-2017-16653

An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13,
3.4-BETA5, and 4.0-BETA5. The current implementation of CSRF protection in
Symfony (Version >=2) does not use different tokens for HTTP and HTTPS;
therefore the token is subject to MITM attacks on HTTP and can then be used
in an HTTPS context to do CSRF attacks.