Fixed #21548 -- Added FileExtensionValidator and validate_image_file_extension.

1 files changed, 2 insertions, 0 deletions

diff --git a/django/db/models/fields/files.py b/django/db/models/fields/files.py
index e3a3fee8f6..8dfd9bf08d 100644
--- a/django/db/models/fields/files.py
+++ b/django/db/models/fields/files.py
@@ -8,6 +8,7 @@ from django.core import checks
 from django.core.files.base import File
 from django.core.files.images import ImageFile
 from django.core.files.storage import default_storage
+from django.core.validators import validate_image_file_extension
 from django.db.models import signals
 from django.db.models.fields import Field
 from django.utils import six
@@ -378,6 +379,7 @@ class ImageFieldFile(ImageFile, FieldFile):
 
 
 class ImageField(FileField):
+    default_validators = [validate_image_file_extension]
     attr_class = ImageFieldFile
     descriptor_class = ImageFileDescriptor
     description = _("Image")