The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the maker title value of the Google Maps block in all versions up to, and including, 5.0.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Essential Blocks for Gutenberg: from n/a through 3.8.5.

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Essential Blocks for Gutenberg: from n/a through 4.2.0.

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Essential Blocks for Gutenberg: from n/a through 4.2.0.

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Essential Blocks for Gutenberg: from n/a through 4.2.0.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WPDeveloper Essential Blocks for Gutenberg allows Stored XSS.This issue affects Essential Blocks for Gutenberg: from n/a through 4.8.4.

The Essential Blocks WordPress plugin before 4.7.0 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Missing Authorization vulnerability in WPDeveloper Essential Blocks for Gutenberg.This issue affects Essential Blocks for Gutenberg: from n/a through 4.4.9.

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘tagName’ parameter in versions up to, and including, 4.5.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's "Social Icons" block in all versions up to, and including, 4.5.9 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.