Implement a mitigation against CSRF attacks#98
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Polished the PR by using a random per-session HMAC key. Implementation of |
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As raised in #86, password change is prone to CSRF attacks. This PR implements a mitigation based on tokens tied to a user session and an action (see this as WordPress's nonces).
For now, HMAC's key is based on
PHPSESSID. This is not the best thing to do (in case of successful session fixation) but using a random value instead won't take too long to implement now.