CVE-2023-5706: Vektor-Inc Vk Blocks

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Vektor-Inc Vk Blocks: up to and including 1.63.0.1

Published 2023-11-22. Last modified 2026-06-17.