#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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