Threat intelligence

GutenKit <= 2.4.12 - Missing Authorization to Unauthenticated Sensitive Information Exposure via Mailchimp REST Endpoints

CVE-2026-15827 · gutenkit-blocks-addon

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Gutenkit Blocks Addon at a vulnerable version. How SiteRespond intelligence works

Vulnerability: GutenKit <= 2.4.12 - Missing Authorization to Unauthenticated Sensitive Information Exposure via Mailchimp REST Endpoints
Affected software: gutenkit-blocks-addon(Plugin)
Affected versions: ≤ 2.4.12
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2026-15827
Published: 22 July 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory 7430594c-3a71-4b24-875b-014e03be868f). Methodology and redistribution notes

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