The Image Optimizer by 10web WordPress plugin before 1.0.27 does not sanitise and escape the iowdtabsactive parameter before rendering it in the plugin admin panel, leading to a reflected Cross-Site Scripting vulnerability, allowing an attacker to trick a logged in admin to execute arbitrary javascript by clicking a link.

The Image Optimizer by 10web WordPress plugin before 1.0.27 does not sanitize the dir parameter when handling the getsubdirs ajax action, allowing a high privileged users such as admins to inspect names of files and directories outside of the sites root.