How severe is CVE-2021-32594?

CVE-2021-32594 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2021-32594 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32594?

CVE-2021-32594 affects Fortinet Fortiportal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32594?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-32594 published?

CVE-2021-32594 was published on 2021-08-04 and last updated on 2026-06-17.

CVE-2021-32594

CVE-2021-32594 is a medium-severity vulnerability in Fortinet Fortiportal with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 5.5
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Fortinet Fortiportal
Published: 2021-08-04
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-32594?: 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.
How severe is CVE-2021-32594?: CVE-2021-32594 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2021-32594 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32594?: CVE-2021-32594 affects Fortinet Fortiportal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32594?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-32594 published?: CVE-2021-32594 was published on 2021-08-04 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:fortinet:fortiportal:*:*:*:*:*:*:*:*

More vulnerabilities in Fortinet Fortiportal

CVE-2021-32590 — Critical (CVSS 9.9): Multiple improper neutralization of special elements used in an SQL command vulnerabilities in FortiPortal 6.0.0…
CVE-2021-32588 — Critical (CVSS 9.8): A use of hard-coded credentials (CWE-798) vulnerability in FortiPortal versions 5.2.5 and below, 5.3.5 and below, 6.0.4…
CVE-2017-7342 — Critical (CVSS 9.8): A weak password recovery process vulnerability in Fortinet FortiPortal versions 4.0.0 and below allows an attacker to…
CVE-2017-7337 — Critical (CVSS 9.1): An improper Access Control vulnerability in Fortinet FortiPortal versions 4.0.0 and below allows an attacker to…
CVE-2023-48791 — High (CVSS 8.8): An improper neutralization of special elements used in a command ('Command Injection') vulnerability [CWE-77] in…
CVE-2025-24470 — High (CVSS 8.6): An Improper Resolution of Path Equivalence vulnerability [CWE-41] in FortiPortal 7.4.0 through 7.4.2, 7.2.0 through…

All CVEs affecting Fortinet Fortiportal →

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →