Input validation vulnerability in Gosign – Posts Slider Block 1.1.0

The Gosign – Posts Slider Block plugin for WordPress has a security issue called Stored Cross-Site Scripting. This means that hackers can inject harmful code into pages using the ‘posts-slider-block’ feature, which can then be executed whenever someone visits the page. This can happen in all versions of the plugin, up to and including 1.1.0. It is important to note that the attacker must have Contributor-level access or higher in order to exploit this vulnerability.