PostX Gutenberg Blocks for Post Grid < 2.4.10 - Contributor+ Stored Cross-Site Scripting

The plugin allows users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks via the plugin's block. PoC can be entered with code editor the example below uses Taxonomy block; all blocks are vulnerable:...

SA-2008-042 - Tinytax - Cross site scripting

The Tinytax taxonomy block displays a vocabulary as a tree within a block. The module displays certain values without appropriate filtering. Malicious users with the permission to create taxonomy terms are able to exploit this issue and insert arbitrary HTML and script code into pages. Such a cro...