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

> Unauthenticated attackers can abuse an exposed Mailchimp subscription endpoint to manipulate data and exhaust API quotas on affected WordPress sites.

- **Severity:** Critical 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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Feb 2026
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-pc7w-r272-4xgr

## What is CVE-2026-23693?

CVE-2026-23693 is a critical missing authorization vulnerability in Roxnor ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor, published on 23 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-23693?


## How do I fix CVE-2026-23693?

No fix has been published for CVE-2026-23693 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-23693 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23693 exists.

Public exploit code:

- ElementsKit Lite <3.7.9 - Unauthenticated Mailchimp Proxy (nuclei): http/cves/2026/CVE-2026-23693.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-23693 and fix it if it is affected.

What it is: CVE-2026-23693 is a critical missing authorization vulnerability in Roxnor ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor, published on 23 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23693 exists.

Affected product: Roxnor ElementsKit Elementor Addons – Advanced Widgets & Templates Addons for Elementor. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-23693/ (Markdown: https://insights.sbomify.com/CVE-2026-23693/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-23693
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-23693
- OSV: https://osv.dev/vulnerability/CVE-2026-23693

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-23693/
Summaries are generated and may contain mistakes; the official description above is the record.