CVE-2023-6220: The Piotnet Forms plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type v

Q: How do I fix CVE-2023-6220?

piotnet forms: upgrade to newer than 1.0.26. Exact commands for each OS are on this page.

Q: Is CVE-2023-6220 being exploited?

CVE-2023-6220 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-6220 affect?

CVE-2023-6220 affects piotnet forms. Severity is high (CVSS 8.1). 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 un

Q: How urgent is CVE-2023-6220?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 8.1REMOTEUPGRADE

CVE-2023-6220 is a high-severity flaw (CVSS 8.1) affecting piotnet forms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-434
Published	2024-01-11
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: piotnet

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-01-11 09:15 UTCPublished CVE record published
2026-06-17 06:50 UTCUpdated Record last modified

piotnet piotnet forms UPGRADE

Affected: <= 1.0.26

Fixed in: newer than 1.0.26

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy piotnet-forms || rpm -q piotnet-forms || piotnet-forms --version

2. UPGRADE to newer than 1.0.26 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade piotnet-forms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade piotnet-forms

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-6220?

piotnet forms: upgrade to newer than 1.0.26. Exact commands for each OS are on this page.

Is CVE-2023-6220 being exploited?

CVE-2023-6220 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-6220 affect?

CVE-2023-6220 affects piotnet forms. Severity is high (CVSS 8.1). 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 un

How urgent is CVE-2023-6220?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2023-51412 CRITICAL 9.0 UPGRADE Unrestricted Upload of File with Dangerous Type vulnerability in Piotnet Piotnet Forms.This issue affects Piot

References

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