CVE-2023-5706
VK Blocks <= 1.63.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block
- State
- Published
- Severity
- 6.4 Medium
- Published
- Nov 22, 2023
- Updated
- Apr 8, 2026
- Reserved
- Oct 22, 2023
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | Wordfence |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
VK Blocksvektor-inc |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/05dd7c96-7880-44a8-a06f-037bc627fd8d?source=cve
- https://plugins.trac.wordpress.org/browser/vk-blocks/tags/1.63.0.1/inc/vk-blocks/build/blocks/ancestor-page-list/index.php#L50
- https://plugins.trac.wordpress.org/browser/vk-blocks/tags/1.63.0.1/inc/vk-blocks/build/blocks/ancestor-page-list/index.php#L54
- https://plugins.trac.wordpress.org/browser/vk-blocks/tags/1.63.0.1/inc/vk-blocks/build/blocks/ancestor-page-list/index.php#L57
- https://plugins.trac.wordpress.org/changeset/2983202/vk-blocks/trunk/inc/vk-blocks/build/blocks/ancestor-page-list/index.php
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