Per https://wordpress.org/support/topic/350806 he wants a plugin that uploads for both bbPress and WordPress.
Use Gravatar.com.
Support for which is built into wp and bbpress and a million other sites on the internet. I just went through this same thing: trust me and buy into the gravatar system, which may be kind of clunky but is far better than anything you can hack together.
I just have sent here the answer to No_Ob about another alternative. Has it been removed by a moderator and why?
I agree 100% with HSeatSleeper.
Gravatars works great with bbPress. Best of all the webmaster or editor does not have to be concerned about anything being uploaded to the server, security issues, etc.
Kamil_D sorry, it looked like spam to me based on the other comment I saw from you. I deleted it in error. Glad to know it’s not spam. Sorry about that.
I am happy too that from now on you know i’m not a spammer
In “User photo” plugin for wordpress you can adjust the settings so that if there is no uploaded avatar on the server, then it shows a gravater. So my example is a better alternative then to just use a (standard) gravater.