GFI MailEssentials AI security vulnerabilities

GFI MailEssentials AI is an open-source anti-spam and data breach protection software developed by GFI in the United States. Versions of GFI MailEssentials AI prior to version 22.4 contained a security vulnerability. This vulnerability stemmed from a storage cross-site scripting vulnerability...

PT-2026-20900

Name of the Vulnerable Software and Affected Versions GFI MailEssentials AI versions prior to 22.4 Description GFI MailEssentials AI versions before 22.4 have a flaw that allows authenticated users to check for the existence of arbitrary files on the server. This is possible through the...

EUVD-2025-14684

Malicious code in bioql PyPI...

EUVD-2025-14683

Malicious code in bioql PyPI...

CVE-2025-34491

GFI MailEssentials prior to version 21.8 is vulnerable to a .NET deserialization issue. A remote and authenticated attacker can execute arbitrary code by sending crafted serialized .NET when joining to a Multi-Server setup...

CVE-2025-34490

GFI MailEssentials prior to version 21.8 is vulnerable to an XML External Entity XXE issue. An authenticated and remote attacker can send crafted HTTP requests to read arbitrary system files...

CVE-2025-34491

GFI MailEssentials prior to version 21.8 is vulnerable to a .NET deserialization issue. A remote and authenticated attacker can execute arbitrary code by sending crafted serialized .NET when joining to a Multi-Server setup...

CVE-2025-34491

CVE-2025-34491 affects GFI MailEssentials prior to v21.8. The issue is a .NET deserialization flaw in the Multi-Server setup that allows a remote, authenticated attacker to execute arbitrary code by sending crafted serialized .NET data. Root cause: improper deserialization in the Multi-Server com...

CVE-2025-34490

GFI MailEssentials prior to version 21.8 is vulnerable to an XML External Entity XXE issue. An authenticated and remote attacker can send crafted HTTP requests to read arbitrary system files...

CVE-2025-34490

GFI MailEssentials

PT-2025-18106 · Gfi · Gfi Mailessentials

Name of the Vulnerable Software and Affected Versions: GFI MailEssentials versions prior to 21.8 Description: The issue is related to an XML External Entity XXE problem. An authenticated and remote attacker can send crafted HTTP requests to read arbitrary system files. Recommendations: For versio...