About xenforo2.1 vulnerability

[Baby Community]

https://xenforo.com/community/threa...-2-6-released-includes-security-fixes.222133/

Isn't the vulnerability mentioned in the link above only present in xenforo2.1.15? I'm already waiting for the xenforo2.3 stable version to be released. But if it's only on this version, I can wait to renew the license until the 2.3 stable version is released.
About xenforo2.1 vulnerability

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