Extensive VC Addons for WPBakery page builder <= 1.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'title_tag' and 'text_tag' Shortcode Attributes
- ID
- WPSEC-2026-1591
- Plugin
- Extensive VC Addons for WPBakery page builder (extensive-vc-addon)
- Affected
- all versions before 2.0
- Remediation
- Update to 2.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-25
- Attack surface
- Extensive VC Addons for WPBakery page builder on WPSec AttackSurface
- Fix released
- Published
Description
The Extensive VC Addons for WPBakery page builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title_tag' and 'text_tag' attributes of the plugin's shortcodes in all versions up to, and including, 1.8.1. This is due to the user-supplied tag value being printed as an HTML tag name without validation against a list of allowed tags, and esc_attr() not preventing additional attributes from being injected into the tag. 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.
References
- https://wpsec.com/vuln/WPSEC-2026-1591/
- https://plugins.svn.wordpress.org/extensive-vc-addon/tags/2.0/
- https://wordpress.org/plugins/extensive-vc-addon/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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