Description
An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2.0 through 7.2.9, FortiMail 7.0 all versions may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Fortinet | FortiMail | 8.0.0 – ≤ 8.0.1, 7.6.0 – ≤ 7.6.6, 7.4.0 – ≤ 7.4.8, 7.2.0 – ≤ 7.2.9, 7.0.0 – ≤ 7.0.9 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 4 repositories
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maxprog-svg/CVE-2026-104286 ★ 0 · Oct 29, 2026
Exploit for CVE-2026-104286 — FortiMail: Unauthenticated Arbitrary File Write → Code Execution
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CompleteTech-Security/fortimail-cve-2026-104286-check ★ 0 · Oct 23, 2026
Offline FortiMail evidence checker for CVE-2026-104286. FortiMail version and deployment evidence. Standalone Python; JSON/CSV/HTML reports; no exploit payloads.
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kh20134/fortimail-cve-2026-104286-response ★ 0 · Oct 10, 2026
FortiMail CVE-2026-104286 (CVSS 9.8) 점검·대응 도구 (버전 확인, IoC 점검, 완화·패치 체크리스트)
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techupdate24/fortimail-zero-day-cve-2026-104286 ★ 0 · Oct 2, 2026
A complete guide and workflow for integrating Agile sprints with DevOps CI/CD pipelines.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- NCSC-2026-0398 Kwetsbaarheid verholpen in Fortinet FortiMail NCSC-NL (Netherlands) · Oct 2, 2026
- WID-SEC-2026-3701 Fortinet FortiMail: Schwachstelle ermöglicht Manipulation von Dateien BSI CERT-Bund (WID) · Oct 1, 2026