Ugly solution to get jQuery, django-cms, WYMEditor and the Django admin to work together without modifying django-cms' source.

forms.py

from django import forms
from django.conf import settings

from cms.plugin_pool import plugin_pool
from cms.plugins.text.widgets.wymeditor_widget import WYMEditor

from cmsapp_news.models import NewsItem

class NewsForm(forms.ModelForm):
    """
    Defines a form for News model.
    """
    # This injects the Django Admin's non-minified jQuery into the WYMEditor's 
    # JS include list at runtime. By default, the minified version was used,
    # which gave errors because jQuery ran in noConflict mode, which in turn
    # conflicted with WYMEditor requiring the dollar notation to work.
    WYMEditor.Media.js.insert(0, '/static_media/admin/js/jquery.js')

    class Meta:
        model = NewsItem


    def _get_widget(self):
        plugins = plugin_pool.get_text_enabled_plugins(placeholder=None,
            page=None)
        return WYMEditor(installed_plugins=plugins)

    def __init__(self, *args, **kwargs):
        super(NewsForm, self).__init__(*args, **kwargs)
        widget = self._get_widget()
        self.fields['article'].widget = widget

the url request "/add-plugin/" 404 not found