HomeWordPress vulnerabilitiesBrevo
Brevo vulnerabilities
Brevo has 3 known vulnerabilities in this database. The most recent published record is dated 10 Jul 2026.
- Known vulnerabilities
- 3
- Active installs
- 100,000+
- Latest version
- 3.3.5
- Last updated
- 24 Jun 2026
- Most recent
- 10 Jul 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Cross-site scripting (XSS) CVE-2026-15297 | Medium 6.1 | Up to 3.1.77 | Fixed in a later version (latest 3.3.5) | 10 Jul 2026 |
| Security weakness CVE-2025-14799 | Medium 6.5 | Up to 3.3.0 | Fixed in a later version (latest 3.3.5) | 18 Feb 2026 |
| Cross-site request forgery (CSRF) CVE-2024-8477 | Medium 4.3 | Before 3.1.88 | Fixed in 3.1.88 | 10 Oct 2024 |
Read the published descriptions
- CVE-2026-15297, 10 Jul 2026
- The Newsletter, SMTP, Email marketing and Subscribe forms by Brevo (formely Sendinblue) plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the page parameter in all versions up to, and including, 3.1.77 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. CVE record
- CVE-2025-14799, 18 Feb 2026
- 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. CVE record
- CVE-2024-8477, 10 Oct 2024
- The Newsletter, SMTP, Email marketing and Subscribe forms by Brevo (formely Sendinblue) plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.1.87. This is due to missing or incorrect nonce validation on the Init() function. This makes it possible for unauthenticated attackers to log out of a Brevo connection via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. CVE record
What to do if you run Brevo
If you run Brevo, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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