I try to upload a file of 5mo. My upload limit is set at 10mo in front office config.

The ugc form contains image binary file and a hidden input with base64 image

Then I have an error :
 

Caused by: java.io.IOException: Multipart element 'IMG_5381.JPG' is too large (5649582 bytes) and was discarded.
at org.apache.cocoon.servlet.multipart.RejectedPart.getInputStream(RejectedPart.java:81)
at org.ametys.site.BackOfficeRequestHelper._addMultipartEntityToBuilder(BackOfficeRequestHelper.java:377)
at org.ametys.site.BackOfficeRequestHelper._getMultipartEntityBuilder(BackOfficeRequestHelper.java:365)
at org.ametys.site.BackOfficeRequestHelper._getPostRequest(BackOfficeRequestHelper.java:226)
at org.ametys.site.BackOfficeRequestHelper._getRequest(BackOfficeRequestHelper.java:189)
at org.ametys.site.BackOfficeRequestHelper.getRequest(BackOfficeRequestHelper.java:163)
at org.ametys.site.GeneratePageAction.act(GeneratePageAction.java:139)