CM User Submitted Posts - Uploading Images
The user Submitted Posts plugin can allow users submitting posts via the form to include images in their posts.
Adding Media to the content of the Post via text editor
Users will be able to add images to the post using HTML if you have enabled the text editor. To enable this navigate to CM User Submitted Posts → Settings → Form Settings.
Scroll down to the option labeled Text editor, then check the box to the right of this to enable.
Click Save Changes at the bottom of the page.
Now a text editor option will appear allowing users to post using HTML. With the <img> element they can include images.
Adding images using the visual editor
It is also possible to enable an Add Media button to the form so that users can include images using the visual editor.
Navigate to CM User Submitted Posts → Settings → Form Settings. Then locate the option labeled Media in editor. Check the box to the right of this and click Save Changes.
Now an Add Media button appears on the Form that users can use to include images either by browsing for it among your documents.