I recently uploaded a fix for WP Ajax Edit Comments which is a mandatory upgrade.
Allows users and admins to edit comments on a post. Users can edit their own comments for a limited time, while admins can edit all comments.
Rene recently reported a security bug with AEC, where posted content wasn’t being filtered appropriately. I have since uploaded a fix for the plugin and it is highly recommended that you upgrade the plugin asap.
You can upgrade quickly and easily from within your WordPress admin area itself.