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4F404 Foundersin404-founders.com·Aug 23 · 4 min read

Zimbra CVE-2026-73570: The SNMP Trap That Became a Shell

An actively exploited command-injection flaw turns a monitoring notification into unauthenticated command execution as the zimbra user. The dangerous part is a feature administrators may barely remem

VNVũ Nhật Lâminblog.fiscybersec.com·Aug 6 · 27 min read

A consolidated analysis of five Russian actor clusters across a fake Notepad++ plugin chain, cloud-service dead drops

Summary Six publications from CERT-UA, ESET, Unit 42, Proofpoint and StrikeReady, spanning 2023 to July 2026, describe five separate Russian actor clusters. Read together, they reveal a shared pattern

SRSatyam Rastogiinsatyamrastogi.hashnode.dev·Apr 25 · 6 min read

Zimbra XSS at Scale: Exploiting 10K+ Servers in Enterprise Email

Originally published on satyamrastogi.com 10,000+ Zimbra Collaboration Suite instances vulnerable to active XSS exploitation. Attack chain enables session hijacking, credential theft, and lateral movement. Analysis of exploitation patterns and defen...