How severe is CVE-2021-4371?

CVE-2021-4371 has a CVSS 3.x base score of 4.3, 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 none.

Is CVE-2021-4371 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4371?

CVE-2021-4371 affects Pluginmirror Wp Quick Frontend Editor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4371?

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

When was CVE-2021-4371 published?

CVE-2021-4371 was published on 2023-06-07 and last updated on 2026-06-17.

CVE-2021-4371

CVE-2021-4371 is a medium-severity vulnerability in Pluginmirror Wp Quick Frontend Editor with a CVSS 3.x base score of 4.3. 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-862.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Pluginmirror Wp Quick Frontend Editor
Published: 2023-06-07
Last modified: 2026-06-17

Description

The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Setting Changs in versions up to, and including, 5.5. This is due to lacking both a security nonce and a capabilities check. This makes it possible for low-authenticated attackers to change plugin settings even when they do not have the capabilities to do so.

Frequently asked questions

What is CVE-2021-4371?: The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Setting Changs in versions up to, and including, 5.5. This is due to lacking both a security nonce and a capabilities check. This makes it possible for low-authenticated attackers to change plugin settings even when they do not have the capabilities to do so.
How severe is CVE-2021-4371?: CVE-2021-4371 has a CVSS 3.x base score of 4.3, 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 none.
Is CVE-2021-4371 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4371?: CVE-2021-4371 affects Pluginmirror Wp Quick Frontend Editor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4371?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4371 published?: CVE-2021-4371 was published on 2023-06-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pluginmirror:wp_quick_frontend_editor:*:*:*:*:*:wordpress:*:*

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