Medium 6.4Published Oct 30, 2026

CVE-2026-118500Cool FormKit Lite <= 2.7.9 - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via Form Field custom_id Parameter

Updated under an hour ago (Oct 30, 2026, 5:00 AM ET)

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It affects coolplugins Cool FormKit Lite – Advanced Form Builder for Elementor. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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The Cool FormKit Lite – Advanced Form Builder for Elementor plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the '_elementor_data.form_fields[].custom_id' parameter in all versions up to, and including, 2.7.9 due to insufficient input sanitization and output escaping. 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. The esc_html() call applied at server emission is bypassed because the HTML fragment-serialization algorithm restores " to a raw double-quote inside text nodes when jQuery .html() extracts the template, allowing the attacker-controlled custom_id to break out of an HTML attribute context within the plugin's own frontend script.

CVSS: 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Wordfence
NVD analysis: Received
Record last updated: Oct 30, 2026
First seen by InfoSec Signals: Oct 30, 2026

Affected products

Affected products

coolplugins Cool FormKit Lite – Advanced Form Builder for Elementor coolplugins:cool_formkit_lite_advanced_form_builder_for_elementor (from the name)	through 2.7.9	CNA record

References

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/94c6ee49-604d-4183-bd47-7ab2732de6b4?source=cve
https://plugins.trac.wordpress.org/browser/extensions-for-elementor-form/tags/2.7.9/assets/js/shared/logic-frontend.js#L719
https://plugins.trac.wordpress.org/browser/extensions-for-elementor-form/tags/2.7.9/includes/fields/conditional-fields-trait.php#L753
https://plugins.trac.wordpress.org/browser/extensions-for-elementor-form/tags/2.7.9/includes/fields/conditional-fields-trait.php#L704
https://plugins.trac.wordpress.org/browser/extensions-for-elementor-form/tags/2.7.9/modules/forms/widgets/cool-form.php#L711
https://github.com/CoolPluginsTeam/extensions-for-elementor-form/pull/90
https://plugins.trac.wordpress.org/changeset/3772891/extensions-for-elementor-form/trunk/assets/js/shared/logic-frontend.js

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.