Open Redirection via Import CSV option
CVSSv3 Score: 2.2 An URL Redirection to Untrusted Site ('Open Redirect') vulnerability [CWE-601] in FortiNAC-F may allow a remote privileged attacker with system administrator role to redirect users to an arbitrary website via crafted CSV file. Revised on 2026-04-14 00:00:00
CSIRTS triage
- What
- Remote privileged attackers may redirect users to arbitrary websites via crafted CSV files.
- Who is affected
- Privileged users of FortiNAC-F.
- Urgency
- Remediation is necessary to prevent phishing and other attacks.
- Action
- Implement validation for imported CSV files.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://fortiguard.fortinet.com/psirt/FG-IR-26-118
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-217410.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-21741 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Open Redirection via
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
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