CVE-2023-5706
VK Blocks <= 1.63.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | vektor-inc |
| Product | vk blocks |
| Published | Nov 22, 2023 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
vektor-inc / VK Blocks
0 ≤ 1.63.0.1
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/05dd7c96-7880-44a8-a06f-037bc627fd8d?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/vk-blocks/tags/1.63.0.1/inc/vk-blocks/build/blocks/ancestor-page-list/index.php#L50 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/vk-blocks/tags/1.63.0.1/inc/vk-blocks/build/blocks/ancestor-page-list/index.php#L54 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/vk-blocks/tags/1.63.0.1/inc/vk-blocks/build/blocks/ancestor-page-list/index.php#L57 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/2983202/vk-blocks/trunk/inc/vk-blocks/build/blocks/ancestor-page-list/index.php
Credits
István Márton