CVE-2023-6316: The MW WP Form plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type vali

Q: How do I fix CVE-2023-6316?

mw wp form: upgrade to newer than 5.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2023-6316 being exploited?

CVE-2023-6316 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-2023-6316 affect?

CVE-2023-6316 affects mw wp form. Severity is critical (CVSS 9.8). The MW WP Form plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the '_single_file_upload' function in versions up to, and including, 5.0.1. This makes it possible for unauthenticated a

Q: How urgent is CVE-2023-6316?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-6316 is a critical-severity flaw (CVSS 9.8) affecting mw wp form. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The MW WP Form plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the '_single_file_upload' function in versions up to, and including, 5.0.1. 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

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-434
Published	2024-01-11
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: mw wp form project

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

mw wp form project mw wp form UPGRADE

Affected: <= 5.0.1

Fixed in: newer than 5.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy mw-wp-form || rpm -q mw-wp-form || mw-wp-form --version

2. UPGRADE to newer than 5.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mw-wp-form

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mw-wp-form

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-2023-6316?

mw wp form: upgrade to newer than 5.0.1. Exact commands for each OS are on this page.

Is CVE-2023-6316 being exploited?

CVE-2023-6316 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-2023-6316 affect?

CVE-2023-6316 affects mw wp form. Severity is critical (CVSS 9.8). The MW WP Form plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the '_single_file_upload' function in versions up to, and including, 5.0.1. This makes it possible for unauthenticated a

How urgent is CVE-2023-6316?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

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References

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