CVE-2026-42412 — WeDevs WP User Frontend Vulnerability

CVE-2026-42412 — WeDevs WP User Frontend Vulnerability

CVE-2026-42412 — Missing Authorization vulnerability in weDevs WP User Frontend allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects WP User Frontend: from n/a through 4.3.1.

What This Means For You

  • If your environment is affected by CWE-862, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-42412 updates and patches.

Related ATT&CK Techniques

🛡️ Detection Rules

2 rules · 6 SIEM formats

2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.

high T1190 Initial Access

CVE-2026-42412 - WP User Frontend Missing Authorization

Sigma YAML — free preview
title: CVE-2026-42412 - WP User Frontend Missing Authorization
id: scw-2026-04-29-ai-1
status: experimental
level: high
description: |
  Detects attempts to exploit the CVE-2026-42412 vulnerability in WP User Frontend by targeting the admin-ajax.php endpoint with the 'wfu_frontend_upload' action, which is susceptible to missing authorization checks. A 200 status code indicates a successful request that bypassed authorization.
author: SCW Feed Engine (AI-generated)
date: 2026-04-29
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-42412/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/wp-admin/admin-ajax.php'
      cs-uri-query|contains:
          - 'action=wfu_frontend_upload'
      sc-status:
          - 200
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-42412 vulnerability CVE-2026-42412
CWE-862 weakness CWE-862
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedApril 29, 2026 at 12:16 UTC

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