# CVE-2026-11357: Information disclosure in Kadence Blocks — Page Builder Toolkit for Gutenberg Editor

> Authenticated contributors can extract sensitive Kadence license keys and API credentials from the browser console if an admin has connected a license.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Jun 2026
- **Updated:** 18 Jun 2026
- **Also known as:** GHSA-g255-vwqv-qh7v

## What is CVE-2026-11357?

CVE-2026-11357 is a medium-severity vulnerability in stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor, published on 18 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Kadence Blocks — Page Builder Toolkit for Gutenberg Editor plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.7.5 via the editor_assets_variables. This makes it possible for authenticated attackers, with contributor-level access and above, to extract the site's connected Kadence account license key, license owner email, api_key, api_email, and license domain from the browser console by inspecting window.kadence_blocks_params.proData. Exploitation requires only that an administrator has previously connected a valid Kadence license; the full credential bundle is then readable by any Contributor-level user from the block editor client context without any server-side request manipulation.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-11357?


## How do I fix CVE-2026-11357?

No fix has been published for CVE-2026-11357 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11357 being exploited?

There is no known exploitation of CVE-2026-11357 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11357 and fix it if it is affected.

What it is: CVE-2026-11357 is a medium-severity vulnerability in stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor, published on 18 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-11357 in the wild and no public exploit code.

Affected product: stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor. 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-2026-11357/ (Markdown: https://insights.sbomify.com/CVE-2026-11357/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11357
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11357
- OSV: https://osv.dev/vulnerability/CVE-2026-11357

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11357/
Summaries are generated and may contain mistakes; the official description above is the record.