Medium

Layouts for WPBakery <= 1.1.3 - Missing Authorization to Unauthenticated Template Cache Manipulation via 'handle_sync' AJAX Action

  • Disclosed: 04.08.2026
  • Updated: 11.10.2026 10:22

The Layouts for WPBakery plugin for WordPress is vulnerable to unauthorized actions due to a missing capability check on the Layouts_WPB_Remote::template_sync() callback registered via wp_ajax_nopriv_handle_sync in all versions up to, and including, 1.1.3. This makes it possible for unauthenticated attackers to force the WordPress server to issue outbound HTTP requests to the plugin vendor's external API (https://www.layoutsforwpbakery.com/wp-json/layoutsforwpbakery/v1/{templates,categories}) and to write the JSON-decoded responses verbatim into the site's wp_options table via set_transient() — at any rate the attacker chooses, with no nonce verification, capability check, or rate limiting.

Affected software

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PlatformPackageVulnerable versionsFixed in
WordPress plugin Layouts for WPBakery <= 1.1.3 1.1.4

References

CVSS score 6.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE)
CWE-862
Platform
WordPress
Package
Layouts for WPBakery
Disclosed
04.08.2026
Updated
11.10.2026 10:22

Sources and licenses

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Vulnerability history: Layouts for WPBakery

All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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