4.1.2 Wordpress Image Uploader.
 

I just upgraded to 4.1.2 and I can't upload an image from wordpress admin area using classic/flash uploader.

using firebug i saw that the in processing icon is showing and request never gets completed, the file in request was :-

I switched to 4.1.1 and it worked as normal.

A fix will be out on Monday according to support.

For what it's worth, I am still experiencing this issue, even on 4.1.8. I roll back to 4.0.20 to fix it.
1) Ubuntu 10.04LTS amd64
2) 4.1.8std
3) PHP 5.3.2-1ubuntu4.10 FCGI+PHP-FPM / Wordpress 3.1.2

Same here.

I need to confirm but it looks like it is working with the recommended build. Thanks, at last :)
Yes, it is OK!
I had to disable the following filter to get rid of 403 errors since the upgrade:
SecFilterSelective ARGS "(alert|expression|eval|url)[[:space:]]*\("
SecFilterSelective ARGS "(&\{.+\}|(&#[[0-9a-fA-F]]|\x5cx[0-9a-fA-F]){2})"

SecFilterSelective ARGS "((javascript|vbscript):|style[[:space:]]*=)"
SecFilterSelective ARGS "(fromCharCode|http-equiv|<.+>|innerHTML|dynsrc|-->)"
SecFilterSelective ARGS "document\.(body|cookie|location|write)"

SecFilterSelective ARGS_VALUES "jsessionid|phpsessid|onReadyStateChange|xmlHt tp"

SecFilterSelective ARGS "<(applet|div|embed|iframe|img|meta|object|script| textarea)"

# JavaScript event handlers
SecFilterSelective ARGS "on(Abort|Blur|Click|DblClick|DragDrop|Error|Focus |KeyUp|KeyDown|KeyPrerss|Load|Mouse(Down|Out|Over| Up)|Move|Reset|Resize|Select|Submit|Unload)"