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CVE-2024-8477

15
FAUCET Score

CVE-2024-8477 describes a Cross-Site Request Forgery (CSRF) vulnerability in the Brevo (formerly Sendinblue) Newsletter, SMTP, Email marketing and Subscribe forms plugin for WordPress, affecting all versions up to and including 3.1.87. This flaw stems from missing or incorrect nonce validation within the Init() function. The vulnerability carries a CVSS score of 4.3 (Medium), indicating a low-impact attack where unauthenticated attackers could log out a Brevo connection if they can trick a site administrator into clicking a malicious link. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.1.88CPE matchmatch criteria
cpe:2.3:a:brevo:newsletter\,_smtp\,_email_marketing_and_subscribe:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 5th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / changeset/3165451/mailin/tags/3.1.88/page/page-home.php
Patch
wordfence.com / threat-intel/vulnerabilities/id/e070b422-9036-4362-832b-43fd4838f394
Third Party Advisory