Description

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.

Classification

CVE ID: CVE-2025-34490

CVSS Base Severity: MEDIUM

CVSS Base Score: 6.5

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Products

Vendor: GFI

Product: MailEssentials

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 14.29% (scored less or equal to compared to others)

EPSS Date: 2025-05-27 (when was this score calculated)

Stakeholder-Specific Vulnerability Categorization (SSVC)

SSVC Exploitation: none

SSVC Technical Impact: partial

SSVC Automatable: false

References

https://nvd.nist.gov/vuln/detail/CVE-2025-34490
https://frycos.github.io/vulns4free/2025/04/28/mailessentials.html
https://gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resources/documentation/product-releases

Timeline