CVE-2016-15042: The Frontend File Manager (versions < 4.0), N-Media Post Front-end Form (versions < 1.1) plugins for WordPress

Q: How do I fix CVE-2016-15042?

frontend file manager: upgrade to 4.0; post front-end form: upgrade to 1.1. Exact commands for each OS are on this page.

Q: Is CVE-2016-15042 being exploited?

CVE-2016-15042 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-2016-15042 affect?

CVE-2016-15042 affects frontend file manager, post front-end form. Severity is critical (CVSS 9.8). The Frontend File Manager (versions < 4.0), N-Media Post Front-end Form (versions < 1.1) plugins for WordPress are vulnerable to arbitrary file uploads due to missing file type validation via the `nm_filemanager_upload_file` and `nm_postfro

Q: How urgent is CVE-2016-15042?

Priority 68/100. Critical severity; EPSS top 6%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADEUPGRADE

CVE-2016-15042 is a critical-severity flaw (CVSS 9.8) affecting frontend file manager, post front-end form. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Frontend File Manager (versions < 4.0), N-Media Post Front-end Form (versions < 1.1) plugins for WordPress are vulnerable to arbitrary file uploads due to missing file type validation via the `nm_filemanager_upload_file` and `nm_postfront_upload_file` AJAX actions. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.

Why this priority

Critical severity
EPSS top 6%: very likely to be exploited
Public exploit reference
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	6.7% (top 6%)
CISA exploited list	No
Weakness	CWE-434
Published	2024-10-16
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: najeebmedia

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

Am I affected?

Timeline

2024-10-16 08:15 UTCPublished CVE record published
2026-06-17 00:41 UTCUpdated Record last modified

najeebmedia frontend file manager UPGRADE

Affected: < 4.0

Fixed in: 4.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy frontend-file-manager || rpm -q frontend-file-manager || frontend-file-manager --version

2. UPGRADE to 4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade frontend-file-manager

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade frontend-file-manager

Note

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

najeebmedia post front-end form UPGRADE

Affected: < 1.1

Fixed in: 1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy post-front-end-form || rpm -q post-front-end-form || post-front-end-form --version

2. UPGRADE to 1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade post-front-end-form

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade post-front-end-form

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: WordPress Frontend File Manager < 4.0 & N-Media Post Frontend < 1.1 - Arbitrary File Upload

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-2016-15042?

frontend file manager: upgrade to 4.0; post front-end form: upgrade to 1.1. Exact commands for each OS are on this page.

Is CVE-2016-15042 being exploited?

CVE-2016-15042 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-2016-15042 affect?

CVE-2016-15042 affects frontend file manager, post front-end form. Severity is critical (CVSS 9.8). The Frontend File Manager (versions < 4.0), N-Media Post Front-end Form (versions < 1.1) plugins for WordPress are vulnerable to arbitrary file uploads due to missing file type validation via the `nm_filemanager_upload_file` and `nm_postfro

How urgent is CVE-2016-15042?

Priority 68/100. Critical severity; EPSS top 6%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

References

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