CVE-2026-11600: Envo Tabs Widget Authorization Bypass Exposes Private Elementor Content

Technical summary

CVE-2026-11600 is a missing authorization check vulnerability in Envo's Templates & Widgets for Elementor (versions ≤1.4.26). The Tabs widget's render() method accepts a user-controlled template/post ID parameter and passes it directly to Elementor's get_builder_content_for_display() function without validating post status (published/private/draft) or the current user's access rights. An authenticated attacker with Author role or higher can craft widget JSON via the Elementor editor REST API to reference arbitrary private post IDs. When the public post containing the malicious Tabs widget is viewed, the private content renders server-side and becomes visible to unauthenticated visitors, bypassing WordPress post access controls.

Business impact

This vulnerability enables unauthorized disclosure of sensitive business information stored in private Elementor pages and templates. Marketing teams, product managers, or internal stakeholders may inadvertently expose draft strategies, unreleased product details, internal documentation, or client-specific content to the public internet. The damage depends on what private content exists within your Elementor-driven site, but reputational and competitive harm is possible. The attack requires trusted insider access, reducing—but not eliminating—organizational risk.

Affected systems

Envo's Templates & Widgets for Elementor and WooCommerce plugin through version 1.4.26 is affected. The vulnerability requires the plugin to be installed and active, the Tabs widget (or Off Canvas variant) to be configured, and the attacker to possess authenticated WordPress access at the Author role or above. Sites running later versions are not affected.

Exploitability

Exploitability is moderate. The attacker must already have legitimate WordPress Author-level credentials or higher, meaning this is an insider threat rather than a remote unauthenticated attack. Once authenticated, exploitation is straightforward: edit a public post's Elementor widget JSON via REST API to reference a private post's ID. No social engineering, phishing, or zero-day knowledge required. The attack is reproducible and leaves minimal forensic footprint in standard audit logs.

Remediation

Update Envo's Templates & Widgets for Elementor plugin to a version later than 1.4.26. Verify the update is available from the WordPress plugin directory or Envo's official channel. After patching, review any Tabs or Off Canvas widgets currently in use on public posts to confirm they do not reference private content IDs. If you cannot update immediately, restrict Author-level access to users who demonstrably require it, and review recent post revisions for suspicious widget JSON modifications.

Patch guidance

Upgrade to the latest version of Envo's Templates & Widgets for Elementor beyond 1.4.26 (verify the exact patch version against the plugin directory or Envo's release notes). Test the update in a staging environment first, particularly if your site relies heavily on Elementor widgets and custom templates. The patch should include authorization checks in the Tabs widget's render() method. After deployment, run a brief smoke test on public posts containing Envo Tabs widgets to ensure they still function correctly.

Detection guidance

Look for Elementor widget JSON modifications in post revisions that reference private post IDs within Tabs or Off Canvas widget configurations. Monitor WordPress REST API calls to `/wp-json/elementor/v1/` endpoints that modify widget data, particularly from Author-level users. Audit user role assignments; if Author roles have proliferated beyond business need, reduce them. Review publicly accessible posts that embed Tabs widgets and verify their 'content_id' or 'template_id' parameters only reference published content. Consider implementing file integrity monitoring on your Elementor widget configuration files if they are stored separately.

Why prioritize this

Although the CVSS score is medium (4.3), this vulnerability merits prioritization because it enables insider threats to leak confidential content at scale with minimal detection risk. The barrier to entry is low for trusted users, and the business impact can be material if private product roadmaps, client data, or strategic content are exposed. Patching is low-effort, and the plugin is widely deployed. Organizations using private Elementor pages should prioritize this update.

Risk score, explained

The CVSS 3.1 score of 4.3 (Medium) reflects a low attack complexity, no user interaction required, and network-based attack vector, offset by the requirement for authenticated access and limited scope (confidentiality impact only, no integrity or availability compromise). The score appropriately captures that this is a data leak threat, not a system compromise or denial-of-service. However, context matters: organizations storing sensitive non-public content in Elementor should weight this higher than sites using Elementor for purely public-facing marketing.

Frequently asked questions