CVE-2026-6127

The Elementor Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the _elementor_data meta field in versions up to, and including, 4.0.4. This is due to insufficient input sanitization when processing form-encoded REST API requests. The plugin registers the _elementor_data meta field with show_in_rest but omits a sanitize_callback, relying instead on a rest_pre_insert_post filter (sanitize_post_data function) that only sanitizes JSON-encoded request bodies. When a contributor sends a form-encoded PATCH request to the WordPress REST API, the json_decode() call on the raw body returns null, causing all sanitization to be skipped. The unsanitized data is then stored via update_post_meta() and later output without escaping through multiple widget sinks including the HTML widget's print_unescaped_setting() function. 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.

• CWE-79

• https://plugins.trac.wordpress.org/browser/elementor/tags/4.0.1/includes/base/widget-base.php#L794
• https://plugins.trac.wordpress.org/browser/elementor/tags/4.0.1/includes/plugin.php#L840
• https://plugins.trac.wordpress.org/browser/elementor/tags/4.0.1/modules/wp-rest/classes/elementor-post-meta.php#L68
• https://plugins.trac.wordpress.org/browser/elementor/trunk/includes/base/widget-base.php#L794
• https://plugins.trac.wordpress.org/browser/elementor/trunk/includes/plugin.php#L840
• https://plugins.trac.wordpress.org/browser/elementor/trunk/modules/wp-rest/classes/elementor-post-meta.php#L68
• https://plugins.trac.wordpress.org/changeset/3519457/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/826a2003-c526-4760-8c21-10d5ae7bb384?source=cve

Published

May 1, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-61262Vulnerability in the Oracle Teleservice product of Oracle E-…6.5
• CVE-2026-61263Vulnerability in the Oracle Scripting product of Oracle E-Bu…5.4
• CVE-2026-61264Vulnerability in the Oracle Call Center Technology product o…5.4
• CVE-2026-61266Vulnerability in the Oracle Supply Chain Globalization produ…6.3
• CVE-2026-61267Vulnerability in the Oracle HCM Configuration Workbench prod…7.3
• CVE-2026-61269Vulnerability in the Oracle Product Workbench product of Ora…6.3
• CVE-2026-61271Vulnerability in the Oracle Document Management and Collabor…7.3
• CVE-2026-61274Vulnerability in the Oracle Product Hub product of Oracle E-…6.3
• CVE-2026-61275Vulnerability in the Oracle Product Hub product of Oracle E-…6.3
• CVE-2026-61277Vulnerability in the Oracle Marketing product of Oracle E-Bu…6.3
• CVE-2026-61278Vulnerability in the Oracle Workflow product of Oracle E-Bus…6.3
• CVE-2026-61279Vulnerability in the Oracle Proposals product of Oracle E-Bu…6.3