How severe is CVE-2024-8420?

CVE-2024-8420 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-2024-8420 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-8420?

CVE-2024-8420 affects Sitesao Dhvc Form. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-8420?

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.

Does CVE-2024-8420 have an EU (EUVD) identifier?

Yes. CVE-2024-8420 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-53961.

When was CVE-2024-8420 published?

CVE-2024-8420 was published on 2025-02-28 and last updated on 2026-06-17.

CVE-2024-8420

CVE-2024-8420 is a critical-severity vulnerability in Sitesao Dhvc Form 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-266.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-53961
Weakness: CWE-266
Affected product: Sitesao Dhvc Form
Published: 2025-02-28
Last modified: 2026-06-17

Description

The DHVC Form plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 2.4.7. This is due to the plugin allowing a user to supply the 'role' field when registering. This makes it possible for unauthenticated attackers to register as an administrator on sites.

Frequently asked questions

What is CVE-2024-8420?: The DHVC Form plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 2.4.7. This is due to the plugin allowing a user to supply the 'role' field when registering. This makes it possible for unauthenticated attackers to register as an administrator on sites.
How severe is CVE-2024-8420?: CVE-2024-8420 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-2024-8420 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-8420?: CVE-2024-8420 affects Sitesao Dhvc Form. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-8420?: 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.
Does CVE-2024-8420 have an EU (EUVD) identifier?: Yes. CVE-2024-8420 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-53961.
When was CVE-2024-8420 published?: CVE-2024-8420 was published on 2025-02-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sitesao:dhvc_form:*:*:*:*:*:wordpress:*:*

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