CVE-2024-8477

Newsletter, SMTP, Email marketing and Subscribe forms by Brevo (formely Sendinblue) <= 3.1.87 - Cross-Site Request Forgery

Published Oct 10, 2024 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-49208 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.
History
Type Values Removed Values Added
First Time appeared Brevo
Brevo newsletter\, Smtp\, Email Marketing And Subscribe
CPEs cpe:2.3:a:brevo:newsletter\,_smtp\,_email_marketing_and_subscribe:*:*:*:*:*:wordpress:*:*
Vendors & Products Brevo
Brevo newsletter\, Smtp\, Email Marketing And Subscribe
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Newsletter, SMTP, Email marketing and Subscribe forms by Brevo (formely Sendinblue) <= 3.1.87 - Cross-Site Request Forgery
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Apr 8, 2026, 5:28 PM
Reserved
Sep 5, 2024, 2:49 PM
Status
Analyzed
Published
Oct 10, 2024, 3:15 AM
Modified
Jun 17, 2026, 8:22 AM