Znuny ≤7.3.6 vulnerable to CRITICAL auth bypass (CVE-2026-93483). Attackers can forge the 'Remote-User' HTTP header to access any account, incl. admins. Avoid HTTPBasicAuth and check vendor guidance. https://radar.offseq.com/threat/in-znuny-through-736-an-attacker-can-bypass-specific-standard-login-procedures-and-gain-unauthorized-0c8a601d6b37802f #OffSeq #Znuny #CVE202693483 #infosec
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