CVE-2026-19699 GutenKit 2.4.12 - 2.4.15 - Contributor+ Mailchimp Audience Data Disclosure
Contributors can access Mailchimp audience metadata due to insufficient capability checks in GutenKit REST API endpoints.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19699?
CVE-2026-19699 is a low-severity missing authorization vulnerability in Unknown GutenKit, published on 20 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-863
Which versions are affected by CVE-2026-19699?
How do I fix CVE-2026-19699?
No fix has been published for CVE-2026-19699 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-19699 being exploited?
There is no known exploitation of CVE-2026-19699 in the wild and no public exploit code.
Sources
Also known as GHSA-hj3v-rcw6-wprx.