Piotnet Forms <= 1.0.28 - Unauthenticated Arbitrary File Upload

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2023-6220
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-01-11 09:15:47 UTC
Updated2026-04-08 19:18:54 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.065700000 probability, percentile 0.911810000 (date 2026-04-22)

Problem Types: CWE-434 | CWE-434 CWE-434 Unrestricted Upload of File with Dangerous Type

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Piotnet Piotnet Forms All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Piotnetdotcom Piotnet Forms affected 1.0.28 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/piotnetforms/tags/1.0.26/inc/forms/ajax-form-builder.php af854a3a-2127-422b-91ae-364da2661108 plugins.trac.wordpress.org Issue Tracking
plugins.trac.wordpress.org/browser/piotnetforms/tags/1.0.29/inc/forms/ajax-form-builder.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/af2b7eac-a3f5-408f-b139-643e7... af854a3a-2127-422b-91ae-364da2661108 www.wordfence.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: István Márton (en)

Additional Advisory Data

SourceTimeEvent
CNA2023-11-18T00:00:00.000ZDiscovered
CNA2023-11-18T00:00:00.000ZVendor Notified
CNA2023-12-04T00:00:00.000ZDisclosed
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