WPBakery Page Builder Addons by Livemesh <= 3.9.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

6.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-2030
CVSS 6.4 (Medium)
Publicly Published May 26, 2026
Last Updated May 27, 2026
Researcher Muhammad Yudha - DJ

Description

The WPBakery Page Builder Addons by Livemesh plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `[lvca_carousel]` and `[lvca_posts_carousel]` shortcode attributes in all versions up to, and including, 3.9.4 due to insufficient input sanitization and output escaping. Specifically, shortcode attributes are encoded with `wp_json_encode()` and output into single-quoted `data-settings` HTML attributes without using `esc_attr()`, allowing attackers to break out of the attribute by injecting single quotes. 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.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

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Vulnerability Details for WPBakery Page Builder Addons by Livemesh

Software Type Plugin
Software Slug addons-for-visual-composer (view on wordpress.org)
Patched? No
Remediation No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Affected Version
  • <= 3.9.4

Recent vulnerabilities in WPBakery Page Builder Addons by Livemesh

# Title CVE ID CVSS Researchers Date
1 WPBakery Page Builder Addons by Livemesh <= 3.9.4 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2026-57754 6.4 timomangcut July 2, 2026
2 WPBakery Page Builder Addons by Livemesh <= 3.9.4 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting CVE-2026-3895 6.4 Muhammad Yudha - DJ May 26, 2026
3 Livemesh Addons for WPBakery Page Builder <= 3.9.4 - Authenticated (Editor+) Stored Cross-Site Scripting CVE-2026-24594 4.4 ZadWon January 15, 2026
4 Livemesh Addons for WPBakery Page Builder <= 3.9 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2024-43320 6.4 LVT-tholv2k August 16, 2024
5 Livemesh Addons for WPBakery Page Builder <= 3.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via shortcode CVE-2024-30183 6.4 Abu Hurayra (HurayraIIT) March 25, 2024
6 WPBakery Page Builder Addons by Livemesh <= 3.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVE-2024-2079 6.4 Krzysztof Zając March 13, 2024
7 Livemesh Addons for WPBakery Page Builder <= 3.5 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2023-50370 6.4 Abu Hurayra (HurayraIIT) December 7, 2023
8 Freemius SDK <= 2.5.9 - Reflected Cross-Site Scripting via fs_request_get CVE-2023-33999 6.1 Rafie Muhammad July 18, 2023
9 Freemius SDK <= 2.4.2 - Missing Authorization Checks CVE-2022-4974 6.3 March 4, 2022

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