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#8 BleepingComputer general March 19, 2026 at 14:55 UTC

Russian hackers exploit Zimbra flaw in Ukrainian govt attacks

By Sergiu Gatlan

AI Summary

APT28 (Russian GRU-linked group) is exploiting a Zimbra Collaboration Suite vulnerability to target Ukrainian government entities through malicious CSS content in HTML emails. The attacks leverage insufficient input sanitization to execute inline scripts when messages are opened in browsers.

Relevance score: 78.0/100

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