WordPress Blocksy Companion plugin <= 2.1.51 - Authenticated (Author+) Stored Cross-Site Scripting via 'tagName' Block Attribute (blocksy/dynamic-data) vulnerability

Authenticated Author+ Stored Cross-Site Scripting via 'tagName' Block Attribute blocksy/dynamic-data vulnerability discovered by haofanjiukunle in WordPress Plugin Blocksy Companion versions = 2.1.51...