CVE-2025-66128 WordPress Sendinblue for WooCommerce plugin <= 4.0.49 - Broken Access Control vulnerability
Attackers can bypass access controls in the Sendinblue for WooCommerce plugin to perform unauthorized actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-66128?
CVE-2025-66128 is a medium-severity missing authorization vulnerability in Brevo Sendinblue for WooCommerce, published on 16 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Missing Authorization vulnerability in Brevo Sendinblue for WooCommerce woocommerce-sendinblue-newsletter-subscription allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Sendinblue for WooCommerce: from n/a through <= 4.0.49.
Weakness: CWE-862
Which versions are affected by CVE-2025-66128?
How do I fix CVE-2025-66128?
No fix has been published for CVE-2025-66128 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-66128 being exploited?
There is no known exploitation of CVE-2025-66128 in the wild and no public exploit code.
Sources
Also known as GHSA-wqf3-6pf2-m6r6.