Description
KeystoneJS before 4.0.0-beta.7 allows application-wide CSRF bypass by removing the CSRF parameter and value, aka SecureLayer7 issue number SL7_KEYJS_03. In other words, it fails to reject requests that lack an x-csrf-token header.
Remediation
References
http://blog.securelayer7.net/keystonejs-open-source-penetration-testing-report/
https://github.com/keystonejs/keystone/issues/4437
https://github.com/keystonejs/keystone/pull/4478
https://www.exploit-db.com/exploits/43922/
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