XXE in Gfi Mailessentials
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.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (54.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
- Gfi Mailessentials — versions 0
Weakness classification (CWE)
References
- frycos.github.io/vulns4free/2025/04/28/mailessentials.html (Exploit, technical-description, exploit)
- gfi.ai/products-and-solutions/network-security-solutions/mailessentials/resourc… (vendor-advisory, Release Notes)
- www.vulncheck.com/advisories/gfi-mailessentials-xxe-arbitrary-file-read (third-party-advisory)
Frequently asked questions
- What is CVE-2025-34490?
- CVE-2025-34490 is a medium-severity vulnerability in Gfi Mailessentials, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2025-04-28.
- How severe is CVE-2025-34490?
- Medium severity. CVSS v3 base score is 6.5 out of 10.