How severe is CVE-2023-27459?

CVE-2023-27459 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-27459 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27459?

CVE-2023-27459 affects Wpeverest User Registration & Membership. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-27459?

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.

Does CVE-2023-27459 have an EU (EUVD) identifier?

Yes. CVE-2023-27459 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-31235.

When was CVE-2023-27459 published?

CVE-2023-27459 was published on 2024-03-26 and last updated on 2026-06-17.

CVE-2023-27459

CVE-2023-27459 is a high-severity vulnerability in Wpeverest User Registration & Membership with a CVSS 3.x base score of 7.4. 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-502.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-31235
Weakness: CWE-502
Affected product: Wpeverest User Registration & Membership
Published: 2024-03-26
Last modified: 2026-06-17

Description

Deserialization of Untrusted Data vulnerability in WPEverest User Registration.This issue affects User Registration: from n/a through 2.3.2.1.

Frequently asked questions

What is CVE-2023-27459?: Deserialization of Untrusted Data vulnerability in WPEverest User Registration.This issue affects User Registration: from n/a through 2.3.2.1.
How severe is CVE-2023-27459?: CVE-2023-27459 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-27459 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27459?: CVE-2023-27459 affects Wpeverest User Registration & Membership. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-27459?: 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.
Does CVE-2023-27459 have an EU (EUVD) identifier?: Yes. CVE-2023-27459 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-31235.
When was CVE-2023-27459 published?: CVE-2023-27459 was published on 2024-03-26 and last updated on 2026-06-17.

References

https://patchstack.com/database/vulnerability/user-registration/wordpress-user-registration-plugin-2-3-2-1-authenticated-php-object-injection-vulnerability?_s_id=cve

Affected products (1)

cpe:2.3:a:wpeverest:user_registration_\&_membership:*:*:*:*:free:wordpress:*:*

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