Brevo Supply-Chain Attack Injected ClickFix Scripts on Customer Sites
Brevo confirmed a security breach where attackers stole a Cloudflare API key to inject malicious ClickFix scripts into its websites and embedded customer JavaScript files.
Popular marketing and customer communication platform Brevo has confirmed a security incident involving unauthorized access to its infrastructure. According to reports, malicious actors managed to steal the company's Cloudflare API key.
The attackers used this compromise to inject malicious ClickFix scripts directly into Brevo's own web assets, as well as into JavaScript files embedded across various customer websites. These injected scripts were designed to distribute malware to unsuspecting visitors.
ClickFix attacks typically rely on social engineering tactics, tricking users via fake error messages or browser update prompts into executing malicious code on their devices. Brevo's security team has been working to contain and remediate the issue.
This incident highlights the growing threat of supply-chain attacks and the inherent risks associated with third-party widgets and integrated scripts on modern web platforms. Securing API keys and external dependencies remains a critical challenge for tech companies worldwide.
For businesses and technology teams in Uzbekistan and the wider CIS region, this serves as a stark reminder to audit third-party integrations, protect API credentials, and maintain rigorous web security practices to prevent similar supply-chain compromises.
