CVE-2026-19699: CWE-863 Incorrect Authorization in GutenKit
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.
CVSS v3.1
Score 2.7low
Affected software
GutenKit
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The GutenKit WordPress plugin prior to version 2.5.0 does not enforce adequate capability checks on some REST API endpoints. As a result, users assigned the Contributor role or above can retrieve sensitive mailing-list audience metadata linked to the site's marketing account. This represents an authorization bypass vulnerability categorized under CWE-863. No official remediation or patch details have been published at this time.
Potential Impact
Users with Contributor role or higher privileges can access mailing-list audience metadata that should be restricted, potentially exposing sensitive marketing data. There is no indication of active exploitation in the wild. The impact is limited to unauthorized data disclosure within the scope of the plugin's marketing integration.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict Contributor role assignments or limit access to the affected REST API endpoints if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-13T07:59:58.109Z
- State
- PUBLISHED
Threat ID: 6a8699b9acd9273b49344184
Added to database: 08/20/2026, 06:07:53 UTC
Last enriched: 08/20/2026, 06:24:15 UTC
Last updated: 10/04/2026, 10:02:26 UTC
Views: 65
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