The Ditty – Responsive News Tickers, Sliders, and Lists plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.1.65. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to retrieve the full item content of non-public Dittys — including drafts, pending, scheduled, and disabled entries — by enumerating integer post IDs against the ditty_init AJAX endpoint. Unlike the non-AJAX init() counterpart, init_ajax() does not verify that the requested Ditty has a 'publish' post status before loading and returning its items, allowing content that administrators explicitly withheld from public view to be extracted.
The Ditty plugin for WordPress is vulnerable to PHP Object Injection in all versions up to 3.1.38 via deserialization of untrusted input when adding a new ditty. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.