Null as a Last Name

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Level 2

Null as a Last Name

Noticed that if you enter "Null" as a last name, you register that a last name was entered but store the actual value as a Null type. Like the name : "John Null", cannot be saved in Marketo. I am trying to figure out how that would be possible and whether there is something exploitable here. 

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Level 10 - Community Moderator

Re: Null as a Last Name

Marketo reserves the four-letter string "NULL", case-insensitive, as if it were the unquoted keyword NULL. This is known behavior.

"Exploitable", not really, just frustrating under clear circumstances.

Note all form-encoded values are character streams, so given Marketo form logic *something* had to be reserved as the "emptifier" value.