How severe is CVE-2021-4360?

CVE-2021-4360 has a CVSS 3.x base score of 9.9, rated critical 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-2021-4360 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4360?

CVE-2021-4360 affects Wpruby Controlled Admin Access. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4360?

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

When was CVE-2021-4360 published?

CVE-2021-4360 was published on 2023-06-07 and last updated on 2026-06-17.

CVE-2021-4360

CVE-2021-4360 is a critical-severity vulnerability in Wpruby Controlled Admin Access with a CVSS 3.x base score of 9.9. 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-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Wpruby Controlled Admin Access
Published: 2023-06-07
Last modified: 2026-06-17

Description

The Controlled Admin Access plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 1.5.5 by not properly restricting access to the configuration page. This makes it possible for attackers to create a new administrator role with unrestricted access.

Frequently asked questions

What is CVE-2021-4360?: The Controlled Admin Access plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 1.5.5 by not properly restricting access to the configuration page. This makes it possible for attackers to create a new administrator role with unrestricted access.
How severe is CVE-2021-4360?: CVE-2021-4360 has a CVSS 3.x base score of 9.9, rated critical 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-2021-4360 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4360?: CVE-2021-4360 affects Wpruby Controlled Admin Access. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4360?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-4360 published?: CVE-2021-4360 was published on 2023-06-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wpruby:controlled_admin_access:*:*:*:*:*:wordpress:*:*

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