Brevo - Email, SMS, Web Push, Chat, and more. <= 3.3.0 - Unauthenticated Authorization Bypass via Type Juggling
| CVE | CVE-2025-14799 |
|---|---|
| CVSS | 6.5 (Medium) |
| Publicly Published | February 17, 2026 |
| Last Updated | February 18, 2026 |
| Researcher |
ISMAILSHADOW
|
Description
The Brevo - Email, SMS, Web Push, Chat, and more. plugin for WordPress is vulnerable to authorization bypass due to type juggling in all versions up to, and including, 3.3.0. This is due to the use of loose comparison (==) instead of strict comparison (===) when validating the installation ID in the `/wp-json/mailin/v1/mailin_disconnect` REST API endpoint. This makes it possible for unauthenticated attackers to disconnect the Brevo integration, delete the API key, remove all subscription forms, and reset plugin settings by sending a boolean `true` value for the `id` parameter, which bypasses the authorization check through PHP type juggling.
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Vulnerability Details for Brevo – Email, SMS, Web Push, Chat, and more.
| Software Type | Plugin |
|---|---|
| Software Slug | mailin (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 3.3.1, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Brevo – Email, SMS, Web Push, Chat, and more.
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