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ExploitedNot in CISA KEV yet

CVE-2016-15043

WP Mobile Detector <= 3.5 - Arbitrary File Upload

Exploitation confirmed. First attested on 2026-09-17 by GCVE · previdian, GCVE · shadowserver.

  • Published2025-07-19
  • WeaknessCWE-434

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The WP Mobile Detector plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in resize.php file in versions up to, and including, 3.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.

Timeline

dates in UTC
  1. 2025-07-1910:15CVE publishedNVD
  2. 2026-09-17Listed as exploited by GCVEGCVE
  3. 2026-09-17Exploitation first reportedGCVE

Versions per branch

NVD
Wp mobile detector project wp mobile detector
BranchAffectedFixed in
3.5≤ 3.5no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As Wordfence, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Websitez.com, LLC WP Mobile Detectorother versions: not affected
    Affected
    • ≤ 3.5no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-04-08

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-08 06:29 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
1 moduleexploit/unix/webapp/wp_mobile_detector_upload_executerank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2025-07-19
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-26vv-h7j3-gv3q

Frequently asked questions

What is CVE-2016-15043?

The WP Mobile Detector plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in resize.php file in versions up to, and including, 3.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.

Is CVE-2016-15043 actively exploited?

Active exploitation of CVE-2016-15043 has not been confirmed. Its EPSS score was 8.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-15043?

CVE-2016-15043 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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