{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/75393?format=json","vulnerability_id":"VCID-nba9-279f-4qd6","summary":"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.","aliases":[{"alias":"CVE-2026-6127"}],"fixed_packages":[],"affected_packages":[],"references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-6127","reference_id":"","reference_type":"","scores":[{"value":"0.00055","scoring_system":"epss","scoring_elements":"0.17611","published_at":"2026-06-12T12:55:00Z"},{"value":"0.00055","scoring_system":"epss","scoring_elements":"0.17603","published_at":"2026-06-14T12:55:00Z"},{"value":"0.00055","scoring_system":"epss","scoring_elements":"0.17448","published_at":"2026-06-11T12:55:00Z"},{"value":"0.00055","scoring_system":"epss","scoring_elements":"0.17628","published_at":"2026-06-13T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-6127"},{"reference_url":"https://plugins.trac.wordpress.org/changeset/3519457/","reference_id":"3519457","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T16:05:48Z/"}],"url":"https://plugins.trac.wordpress.org/changeset/3519457/"},{"reference_url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/826a2003-c526-4760-8c21-10d5ae7bb384?source=cve","reference_id":"826a2003-c526-4760-8c21-10d5ae7bb384?source=cve","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T16:05:48Z/"}],"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/826a2003-c526-4760-8c21-10d5ae7bb384?source=cve"},{"reference_url":"https://plugins.trac.wordpress.org/browser/elementor/tags/4.0.1/modules/wp-rest/classes/elementor-post-meta.php#L68","reference_id":"elementor-post-meta.php#L68","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T16:05:48Z/"}],"url":"https://plugins.trac.wordpress.org/browser/elementor/tags/4.0.1/modules/wp-rest/classes/elementor-post-meta.php#L68"},{"reference_url":"https://plugins.trac.wordpress.org/browser/elementor/trunk/modules/wp-rest/classes/elementor-post-meta.php#L68","reference_id":"elementor-post-meta.php#L68","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T16:05:48Z/"}],"url":"https://plugins.trac.wordpress.org/browser/elementor/trunk/modules/wp-rest/classes/elementor-post-meta.php#L68"},{"reference_url":"https://plugins.trac.wordpress.org/browser/elementor/tags/4.0.1/includes/plugin.php#L840","reference_id":"plugin.php#L840","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T16:05:48Z/"}],"url":"https://plugins.trac.wordpress.org/browser/elementor/tags/4.0.1/includes/plugin.php#L840"},{"reference_url":"https://plugins.trac.wordpress.org/browser/elementor/trunk/includes/plugin.php#L840","reference_id":"plugin.php#L840","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T16:05:48Z/"}],"url":"https://plugins.trac.wordpress.org/browser/elementor/trunk/includes/plugin.php#L840"},{"reference_url":"https://plugins.trac.wordpress.org/browser/elementor/tags/4.0.1/includes/base/widget-base.php#L794","reference_id":"widget-base.php#L794","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T16:05:48Z/"}],"url":"https://plugins.trac.wordpress.org/browser/elementor/tags/4.0.1/includes/base/widget-base.php#L794"},{"reference_url":"https://plugins.trac.wordpress.org/browser/elementor/trunk/includes/base/widget-base.php#L794","reference_id":"widget-base.php#L794","reference_type":"","scores":[{"value":"6.4","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-01T16:05:48Z/"}],"url":"https://plugins.trac.wordpress.org/browser/elementor/trunk/includes/base/widget-base.php#L794"}],"weaknesses":[{"cwe_id":79,"name":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","description":"The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users."}],"exploits":[],"severity_range_score":"6.4 - 6.4","exploitability":null,"weighted_severity":null,"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-nba9-279f-4qd6"}