The VK Blocks plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.94.2.2 via the page content block. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive data including the content of private posts and pages.

The VK Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'vk-blocks/ancestor-page-list' block in all versions up to, and including, 1.63.0.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The VK Blocks plugin for WordPress is vulnerable to improper authorization via the REST 'update_options' function in versions up to, and including, 1.57.0.5. This allows authenticated attackers, with contributor-level permissions or above, to change the 'vk_font_awesome_version' option to an arbitrary value.

The VK Blocks plugin for WordPress is vulnerable to improper authorization via the REST 'update_vk_blocks_options' function in versions up to, and including, 1.57.0.5. This allows authenticated attackers, with contributor-level permissions or above, to change plugin settings including default icons.