CVE-2023-51412 CRITICAL

CVE-2023-51412: WordPress Piotnet Forms Plugin <= 1.0.25 is vulnerable to Arbitrary File Upload

Vendor Piotnet

Product Piotnet Forms

Weakness CWE-434 · Unrestricted file upload

Published December 29, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

9.0/10

Attack vector Network

Attack complexity High

Privileges required None

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Unrestricted Upload of File with Dangerous Type vulnerability in Piotnet Piotnet Forms.This issue affects Piotnet Forms: from n/a through 1.0.25.

Explanation of Vulnerability in Simple Terms

02Summary

Piotnet Forms versions up to 1.0.25 do not properly validate file uploads, allowing an attacker to upload malicious files to the server. An attacker can exploit this over the network without authentication to upload and execute arbitrary code, potentially compromising the entire site. The vulnerability affects confidentiality, integrity, and availability.

What an attacker can do

03Attacker Capabilities

Upload and execute malicious files on the server without authentication.

Potential impact on your site

04Site Impact

An attacker can run arbitrary code on your site, steal data, modify content, or take the site offline.

Conditions required to exploit

05Prerequisites

Network access to the vulnerable form; no authentication required.

Key dates

06Disclosure timeline

December 29, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-51412 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/434.html AskarLabs — CWE-434 write-up Unrestricted Upload of File with Dangerous Type

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