What’s Vulnerable › Vulnerabilities

CVE-2021-32594

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-04 · updated 2026-06-17
• Weakness: CWE-434

Description

An unrestricted file upload vulnerability in the web interface of FortiPortal 6.0.0 through 6.0.4, 5.3.0 through 5.3.5, 5.2.0 through 5.2.5, and 4.2.2 and earlier may allow a low-privileged user to potentially tamper with the underlying system's files via the upload of specifically crafted files.

Affected products

• Fortinet FortiPortal: from 4.0.0 through 4.0.4; from 4.1.0 through 4.1.2; from 4.2.0 through 4.2.4; from 5.0.0 through 5.0.3; from 5.1.0 through 5.1.2; from 5.2.0 before 5.2.6 — fixed in 5.2.6, 5.3.6, 6.0.5

How to fix

Upgrade to a fixed version: Fortinet FortiPortal 5.2.6, 5.3.6, 6.0.5. Check the vendor advisory for mitigations.

References

• https://fortiguard.com/advisory/FG-IR-21-092
• https://fortiguard.com/advisory/FG-IR-21-092

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