How severe is CVE-2021-4362?

CVE-2021-4362 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-4362 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4362?

CVE-2021-4362 affects Wpkube Kiwi Social Share. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4362?

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-2021-4362 published?

CVE-2021-4362 was published on 2023-06-07 and last updated on 2026-06-17.

CVE-2021-4362

CVE-2021-4362 is a critical-severity vulnerability in Wpkube Kiwi Social Share with a CVSS 3.x base score of 9.8. 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-862.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Wpkube Kiwi Social Share
Published: 2023-06-07
Last modified: 2026-06-17

Description

The Kiwi Social Share plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the kiwi_social_share_get_option() function called via the kiwi_social_share_get_option AJAX action in version 2.1.0. This makes it possible for unauthenticated attackers to read and modify arbitrary options on a WordPress site that can be used for complete site takeover. This was a previously fixed vulnerability that was reintroduced in this version.

Frequently asked questions

What is CVE-2021-4362?: The Kiwi Social Share plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the kiwi_social_share_get_option() function called via the kiwi_social_share_get_option AJAX action in version 2.1.0. This makes it possible for unauthenticated attackers to read and modify arbitrary options on a WordPress site that can be used for complete site takeover. This was a previously fixed vulnerability that was reintroduced in this version.
How severe is CVE-2021-4362?: CVE-2021-4362 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-4362 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4362?: CVE-2021-4362 affects Wpkube Kiwi Social Share. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4362?: 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-2021-4362 published?: CVE-2021-4362 was published on 2023-06-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wpkube:kiwi_social_share:2.1.0:*:*:*:*:wordpress:*:*

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