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CVE-2020-36519

Description

Mimecast Email Security before 2020-01-10 allows any admin to spoof any domain, and pass DMARC alignment via SPF. This occurs through misuse of the address rewrite feature. (The domain being spoofed must be a customer in the Mimecast grid from which the spoofing occurs.)

POC

Reference

- https://wesleyk.me/2020/01/10/my-first-vulnerability-mimecast-sender-address-verification/

Github

No PoCs found on GitHub currently.