Threats Tagged 'brevo compromise'
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Threats Tagged 'brevo compromise'
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A supply chain attack on Brevo's infrastructure on September 14, 2026, compromised over 100,000 customer websites by injecting malicious code into Brevo's JavaScript assets and widgets. The attack delivered a WordPress plugin backdoor that installed automatically when site administrators visited their sites logged in, and ClickFix overlays targeting regular visitors. Attackers modified CDN-hosted files and created malicious subdomains under sendibt1.com, likely after gaining access to Brevo's Cloudflare account. The malicious activity lasted about four hours. Brevo's high-profile clients, including eBay and Louis Vuitton, increase the potential impact of this attack. Join the discussion | AlienVault OTX General | 09/17/2026, 20:54:15 UTC Added: 09/18/2026, 08:46:41 UTC |
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