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.
References (2)
Core 2
Scores
CVSS v3
4.3
EPSS
0.0016
EPSS Percentile
6.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-352
Status
published
Products (2)
brevo/newsletter\,_smtp\,_email_marketing_and_subscribe
< 3.1.88
neeraj_slit/Brevo – Email, SMS, Web Push, Chat, and more.
< 3.1.87
Published
Oct 10, 2024
Tracked Since
Feb 18, 2026