CVE-2026-23693
CriticalElementsKit Elementor Addons < 3.7.9 Unauthenticated Mailchimp REST Endpoint
Published Feb 23, 2026 · Updated Jul 14, 2026 · Also known as 85025fb9-6e19-4c0f-bf16-4b890ba5f7f5
Key Facts
Patch in the next maintenance window- CVE-2026-23693 is a critical-severity vulnerability (CVSS 9.3 v4) affecting elementskit-lite (wordpress-plugin), ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 1.2% probability of exploitation in the next 30 days.
- Fixed versions are available, including ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor 3.7.9, elementskit-lite 3.7.9.
- Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
CVSS v4
9.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (30-day exploit likelihood)
1.2%
Higher than 66.9% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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Description
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.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| elementskit-litewordpress-plugin | See advisory | 3.7.9 |
| ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor | See advisory | 3.7.9 |
Patched Releases
ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor
3.7.9
elementskit-lite
3.7.9
Timeline
Publicly disclosed
Feb 23, 2026
Last updated
Jul 14, 2026
Weakness Type
- CWE-306 Missing Authentication for Critical Function
- CWE-862 Missing Authorization
References
- advisoryhttps://www.vulncheck.com/advisories/elementskit-lite-unauthenticated-mailchimp-rest-endpoint
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/85025fb9-6e19-4c0f-bf16-4b890ba5f7f5?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/85025fb9-6e19-4c0f-bf16-4b890ba5f7f5?source=api-scan
- patchhttps://wordpress.org/plugins/elementskit-lite/
- otherhttps://wpmet.com/plugin/elementskit/
FAQ
Common Questions.
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.
Affected: elementskit-lite (wordpress-plugin); ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor 3.7.9, elementskit-lite 3.7.9.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
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