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Fencer Vulns
critical 9.8

CVE-2016-15042 json

Frontend File Manager < 4.0 & N-Media Post Front-end Form < 1.1 & - Arbitrary File Upload

published 2024-10-16 2 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10786

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
6.7%
EPSS 6.7% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known, plus a Nuclei check

Summary

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.

Patch / fix

  • nmedia Frontend File Manager Plugin 4.0
  • najeebmedia frontend_file_manager 4.0

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

6.68% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template WordPress Frontend File Manager < 4.0 & N-Media Post Frontend < 1.1 - Arbitrary File Upload nuclei detection template
  • pluginvulnerabilities.com https://www.pluginvulnerabilities.com/2016/09/19/arbitrary-file-upload-vulnerability-in-front-end-file-upload-and-manager-plugin/ referenced PoC, tagged "exploit" by a source, unverified
  • pluginvulnerabilities.com https://www.pluginvulnerabilities.com/2016/09/19/arbitrary-file-upload-vulnerability-in-n-media-post-front-end-form/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • nmedia N-Media Post Front-end Form
  • nmedia Frontend File Manager Plugin
  • najeebmedia frontend_file_manager
  • najeebmedia n-media_post_front-end_form

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.