How severe is CVE-2022-4021?

CVE-2022-4021 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-4021 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4021?

CVE-2022-4021 affects Permalink Manager Lite Project Permalink Manager Lite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-4021?

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-2022-4021 published?

CVE-2022-4021 was published on 2022-11-16 and last updated on 2026-06-17.

CVE-2022-4021

CVE-2022-4021 is a high-severity vulnerability in Permalink Manager Lite Project Permalink Manager Lite 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Permalink Manager Lite Project Permalink Manager Lite
Published: 2022-11-16
Last modified: 2026-06-17

Description

The Permalink Manager Lite plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.2.20.1. This is due to missing or incorrect nonce validation on the extra_actions function. This makes it possible for unauthenticated attackers to change plugin settings including permalinks and site maps, via forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Frequently asked questions

What is CVE-2022-4021?: The Permalink Manager Lite plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.2.20.1. This is due to missing or incorrect nonce validation on the extra_actions function. This makes it possible for unauthenticated attackers to change plugin settings including permalinks and site maps, via forged request granted they can trick a site administrator into performing an action such as clicking on a link.
How severe is CVE-2022-4021?: CVE-2022-4021 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-4021 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4021?: CVE-2022-4021 affects Permalink Manager Lite Project Permalink Manager Lite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-4021?: 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-2022-4021 published?: CVE-2022-4021 was published on 2022-11-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:permalink_manager_lite_project:permalink_manager_lite:*:*:*:*:*:wordpress:*:*

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