CVE-2023-6220
CVE-2023-6220 is a high-severity vulnerability in Piotnet Piotnet Forms with a CVSS 3.x base score of 8.1. 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-434.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- EPSS exploit prediction: 1% (69th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2023-58467
- Weakness: CWE-434
- Affected product: Piotnet Piotnet Forms
- Published:
- Last modified:
Description
The Piotnet Forms plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'piotnetforms_ajax_form_builder' function in versions up to, and including, 1.0.28. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
Frequently asked questions
- What is CVE-2023-6220?
- The Piotnet Forms plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'piotnetforms_ajax_form_builder' function in versions up to, and including, 1.0.28. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
- How severe is CVE-2023-6220?
- CVE-2023-6220 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-6220 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-6220?
- CVE-2023-6220 affects Piotnet Piotnet Forms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-6220?
- 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-2023-6220 have an EU (EUVD) identifier?
- Yes. CVE-2023-6220 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58467.
- When was CVE-2023-6220 published?
- CVE-2023-6220 was published on 2024-01-11 and last updated on 2026-06-17.
References
- https://plugins.trac.wordpress.org/browser/piotnetforms/tags/1.0.26/inc/forms/ajax-form-builder.php#L430
- https://plugins.trac.wordpress.org/browser/piotnetforms/tags/1.0.29/inc/forms/ajax-form-builder.php#L430
- https://www.wordfence.com/threat-intel/vulnerabilities/id/af2b7eac-a3f5-408f-b139-643e70b3f27a?source=cve
Affected products (1)
- cpe:2.3:a:piotnet:piotnet_forms:*:*:*:*:*:wordpress:*:*
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