How severe is CVE-2021-4334?

CVE-2021-4334 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-4334 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4334?

CVE-2021-4334 affects Radykal Fancy Product Designer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4334?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-4334 published?

CVE-2021-4334 was published on 2023-10-20 and last updated on 2026-06-17.

CVE-2021-4334

CVE-2021-4334 is a high-severity vulnerability in Radykal Fancy Product Designer with a CVSS 3.x base score of 8.8. 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-285.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-285
Affected product: Radykal Fancy Product Designer
Published: 2023-10-20
Last modified: 2026-06-17

Description

The Fancy Product Designer plugin for WordPress is vulnerable to unauthorized modification of site options due to a missing capability check on the fpd_update_options function in versions up to, and including, 4.6.9. This makes it possible for authenticated attackers with subscriber-level permissions to modify site options, including setting the default role to administrator which can allow privilege escalation.

Frequently asked questions

What is CVE-2021-4334?: The Fancy Product Designer plugin for WordPress is vulnerable to unauthorized modification of site options due to a missing capability check on the fpd_update_options function in versions up to, and including, 4.6.9. This makes it possible for authenticated attackers with subscriber-level permissions to modify site options, including setting the default role to administrator which can allow privilege escalation.
How severe is CVE-2021-4334?: CVE-2021-4334 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-4334 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4334?: CVE-2021-4334 affects Radykal Fancy Product Designer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4334?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-4334 published?: CVE-2021-4334 was published on 2023-10-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:radykal:fancy_product_designer:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Radykal Fancy Product Designer

CVE-2021-24370 — Critical (CVSS 9.8): The Fancy Product Designer WordPress plugin before 4.6.9 allows unauthenticated attackers to upload arbitrary files,…
CVE-2021-4096 — High (CVSS 8.8): The Fancy Product Designer plugin for WordPress is vulnerable to Cross-Site Request Forgery via the FPD_Admin_Import…
CVE-2021-4134 — High (CVSS 7.2): The Fancy Product Designer WordPress plugin is vulnerable to SQL Injection due to insufficient escaping and…
CVE-2024-0365 — Medium (CVSS 6.5): The Fancy Product Designer WordPress plugin before 6.1.5 does not properly sanitise and escape a parameter before using…
CVE-2024-0905 — Medium (CVSS 6.3): The Fancy Product Designer WordPress plugin before 6.1.8 does not sanitise and escape a parameter before outputting it…
CVE-2021-4335 — Medium (CVSS 6.3): The Fancy Product Designer plugin for WordPress is vulnerable to unauthorized access to data and modification of plugin…

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Other CWE-285 (Improper Authorization) vulnerabilities

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CVE-2022-2595 — Critical (CVSS 10.0): Improper Authorization in GitHub repository kromitgmbh/titra prior to 0.79.1.
CVE-2021-28799 — Critical (CVSS 10.0): An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. ) If…
CVE-2026-34048 — Critical (CVSS 9.9): Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to…
CVE-2026-5412 — Critical (CVSS 9.9): In Juju versions prior to 2.9.57 and 3.6.21, an authorization issue exists in the Controller facade. An authenticated…

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