PatchTheCVECVE-2024-8477: The Newsletter, SMTP, Email marketing and Subscribe forms by Brevo (formely Sendinblue) plugin for WordPress i
CVE-2024-8477 is a medium-severity flaw (CVSS 4.3) affecting newsletter\, smtp\, email marketing and subscribe. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 acti
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.2% (top 93%) |
| CISA exploited list | No |
| Weakness | CWE-352 |
| Published | 2024-10-10 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-8477?
newsletter\, smtp\, email marketing and subscribe: upgrade to 3.1.88. Exact commands for each OS are on this page.
Is CVE-2024-8477 being exploited?
CVE-2024-8477 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2024-8477 affect?
CVE-2024-8477 affects newsletter\, smtp\, email marketing and subscribe. Severity is medium (CVSS 4.3). 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
How urgent is CVE-2024-8477?
Priority 17/100. No elevated risk signals yet.
Software pages
Related CVEs
- CVE-2024-43287 MEDIUM 4.3 UPGRADE Cross-Site Request Forgery (CSRF) vulnerability in Brevo Newsletter, SMTP, Email marketing and Subscribe forms
- CVE-2023-2472 MEDIUM 6.1 UPGRADE The Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue WordPress plugin before 3.1.61 does no