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webmail-security4 articles
Aug 31, 2026
Debian DSA-6479-1: Roundcube Webmail XSS, SSRF, and Unauthenticated RCE — Detection and Patching Guide
Overview Debian has issued security advisory DSA-6479-1 for Roundcube, the widely deployed AJAX-based webmail frontend for IMAP servers. The...
cvezero-daypatch-tuesday
Vulnerability ManagementRead Now
Aug 30, 2026
Debian DSA-6479-1: Roundcube Webmail Security Update — Patching, Detection, and Compromise Assessment Guide
Debian Ships Emergency Roundcube Webmail Fixes — What Defenders Must Do Now Debian's security team has published DSA-6479-1, a security upda...
mdrthreat-huntingendpoint-detection
Vulnerability ManagementRead Now
Aug 9, 2026
Webmail CSS Injection Attacks: Defending Against Credential Theft, Session Hijacking, and AI Email Tool Manipulation
Introduction A new class of attack demonstrated by PortSwigger researcher Gareth Heyes should force every organization running webmail — or ...
incident-responseransomwarebreach-response
Incident ResponseRead Now
Aug 8, 2026
CSS Exfiltration Attacks Against Gmail, Outlook, and Proton Mail: Detection and Hardening Guide for Defenders
Introduction PortSwigger researcher Gareth Heyes has disclosed a new class of attacks that weaponize CSS — yes, cascading style sheets — to ...
managed-socmdrsecurity-monitoring
SOC & MDRRead Now