How severe is CVE-2023-0439?

CVE-2023-0439 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-0439 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0439?

CVE-2023-0439 affects Basixonline Nex-forms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0439?

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

When was CVE-2023-0439 published?

CVE-2023-0439 was published on 2023-07-17 and last updated on 2026-06-17.

CVE-2023-0439

CVE-2023-0439 is a medium-severity vulnerability in Basixonline Nex-forms with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Basixonline Nex-forms
Published: 2023-07-17
Last modified: 2026-06-17

Description

The NEX-Forms WordPress plugin before 8.4.4 does not escape its form name, which could lead to Stored Cross-Site Scripting issues. By default only SuperAdmins (in multisite) / admins (in single site) can create forms, however there is a settings allowing them to give lower roles access to such feature.

Frequently asked questions

What is CVE-2023-0439?: The NEX-Forms WordPress plugin before 8.4.4 does not escape its form name, which could lead to Stored Cross-Site Scripting issues. By default only SuperAdmins (in multisite) / admins (in single site) can create forms, however there is a settings allowing them to give lower roles access to such feature.
How severe is CVE-2023-0439?: CVE-2023-0439 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-0439 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0439?: CVE-2023-0439 affects Basixonline Nex-forms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0439?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0439 published?: CVE-2023-0439 was published on 2023-07-17 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/04cea9aa-b21c-49f8-836b-2d312253e09a

Affected products (1)

cpe:2.3:a:basixonline:nex-forms:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Basixonline Nex-forms

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CVE-2022-3142 — High (CVSS 8.8): The NEX-Forms WordPress plugin before 7.9.7 does not properly sanitise and escape user input before using it in SQL…
CVE-2024-53808 — High (CVSS 8.5): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Basix NEX-Forms…
CVE-2023-50838 — High (CVSS 7.6): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Basix NEX-Forms…
CVE-2021-34676 — High (CVSS 7.5): Basix NEX-Forms through 7.8.7 allows authentication bypass for Excel report generation.
CVE-2021-34675 — High (CVSS 7.5): Basix NEX-Forms through 7.8.7 allows authentication bypass for stored PDF reports.

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