Brevo – Email, SMS, Web Push, Chat, and more. vulnerabilities

Plugin slug mailin · 9 known vulnerabilities · latest disclosed 2026-02-17 · WordPress.org page

Every listed vulnerability has a fix. Version 3.3.1 or later is not affected by any of them. If your site runs an older version, update it.

1 of 9 rated high or critical (CVSS 7 or more).

Known vulnerabilities in Brevo – Email, SMS, Web Push, Chat, and more.

SeverityAffected versionsFixed inCVEPublishedDetails
Medium 6.5<= 3.3.03.3.1CVE-2025-147992026-02-17Advisory
Medium 4.3<= 3.1.873.1.88CVE-2024-84772024-10-09Advisory
Medium 4.3<= 3.1.823.1.83CVE-2024-432872024-08-16Advisory
Medium 6.1<= 3.1.773.1.78CVE-2024-356682024-06-03Advisory
Medium 6.1<= 3.1.773.1.78CVE-2026-152972024-03-22Advisory
Medium 6.1<= 3.1.603.1.61CVE-2023-24722023-05-10Advisory
High 7.2<= 3.1.393.1.40none2022-04-08Advisory
Medium 6.1< 3.1.313.1.31CVE-2021-248742022-01-12Advisory
Medium 6.1< 3.1.253.1.25CVE-2021-249232021-12-23Advisory

Check if a site is affected

Enter a site address to see which version of Brevo – Email, SMS, Web Push, Chat, and more. and other plugins it runs, and whether they match a known vulnerability.

Questions

Is the Brevo – Email, SMS, Web Push, Chat, and more. plugin safe to use?

All 9 known issues are fixed in current versions (3.3.1 or later). Keeping it updated is what matters.

How do I check which version of Brevo – Email, SMS, Web Push, Chat, and more. my site runs?

In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.

How do I fix a vulnerable plugin?

Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.

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