Create a glossary module in a course Create a couple of entries logged in as different users. Upload photos with license and author set. Set one author to < > & &lt; &gt; &amp; ' \' 碁 \ \\ Set the other author to </FILEAUTHOR><MALICIOUSXML>oh no!</MALICIOUSXML> Export the glossary Check that the file author is present Import the glossary Verify that the import is successful, and the image is shown Edit the entry Double click the image. Click browse repositories Select embedded files Select the new image Make sure the author is preserved and the names are the same and the license is what you set it to