Dictionary <= 1.0 - Unauthenticated Stored XSS via Direct Dictionary Update

Description

The plugin does not have authorisation, sanitisation or escaping in place when adding or updating dictionary entries, allowing unauthenticated users to store arbitrary web scripts which will execute when a user views an affected entry.

Exploitation requires the plugin's data file to be writable by PHP, which is the shipped state wherever PHP owns the plugin files and is what the plugin's own word-management feature depends on.