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Critical 10.0Published Feb 23, 2026

CVE-2026-23693ElementsKit Elementor Addons < 3.7.9 Unauthenticated Mailchimp REST Endpoint

Updated under an hour ago ()

Does this affect you?

It affects Roxnor ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor (elementskit-lite) WordPress plugin versions prior to 3.7.9 expose the REST endpoint /wp-json/elementskit/v1/widget/mailchimp/subscribe without authentication. The endpoint accepts client-supplied Mailchimp API credentials and insufficiently validates certain parameters, including the list parameter, when constructing upstream Mailchimp API requests. An unauthenticated attacker can abuse the endpoint as an open proxy to Mailchimp, potentially triggering unauthorized API calls, manipulating subscription data, exhausting API quotas, or causing resource consumption on the affected WordPress site.

CVSS
10.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H
Weakness (CWE)
CWE-306
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Deferred
Record last updated
Jul 14, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Roxnor ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor
roxnor:elementskit_elementor_addons_advanced_widgets_and_templates_addons_for_elementor (from the name)
before 3.7.9
CNA record

References

References

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.

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