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Magento StyleSmuggler zero-day exploited to deploy Linux backdoor

September 7, 2026 · BleepingComputer · Severity: CRITICAL

A zero-day vulnerability in Adobe Magento called StyleSmuggler is being actively exploited to deploy Linux backdoors on e-commerce servers. The vulnerability allows attackers to inject malicious code through CSS files and gain persistent access to affected Magento installations.

Key Takeaways

  • A Magento StyleSmuggler zero-day vulnerability is being exploited to deploy Linux backdoors on e-commerce servers hosting Magento stores.
  • E-commerce organizations should patch Magento installations immediately and monitor for backdoor files on compromised web servers.
  • Organizations should review the full article for complete details and implement relevant security measures.
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