The CORS filter is not configured to trust the request’s origin.The request has one or more Cookie or Authorization headers.The request method is not GET, HEAD or OPTIONS.By default, Play will require a CSRF check when all of the following are true: For this reason, Play takes a conservative approach in its defaults, but allows you to configure exactly when a check is done. Historically, browser plugins and extensions have relaxed the rules that frameworks previously thought could be trusted, introducing CSRF vulnerabilities to many applications, and the onus has been on the frameworks to fix them. There is no simple answer to what requests are safe and what are vulnerable to CSRF requests, the reason for this is that there is no clear specification as to what is allowable from plugins and future extensions to specifications. We recommend starting with this information from OWASP. It is recommended that you familiarize yourself with CSRF, what the attack vectors are, and what the attack vectors are not. Since the session token is sent with every request, if an attacker can coerce the victim’s browser to make a request on their behalf, the attacker can make requests on the user’s behalf. §Protecting against Cross Site Request ForgeryĬross Site Request Forgery (CSRF) is a security exploit where an attacker tricks a victim’s browser into making a request using the victim’s session. English ▾ English българин Français 日本語 Türkçe Form submission and validation
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