CVE-2026-42207 — Magento Long Term Support (LTS) is an unofficial,

title: Magento LTS Unvalidated Redirect - CVE-2026-42207
id: scw-2026-05-15-ai-1
status: experimental
level: medium
description: |
  Detects the specific exploit path for CVE-2026-42207 in Magento LTS. The vulnerability lies in the Mage_ProductAlert_AddController::stockAction() which fails to validate the 'uenc' query parameter, allowing for unvalidated redirects to attacker-controlled URLs when a product_id does not match. This rule looks for the specific controller and action with the vulnerable 'uenc' parameter.
author: SCW Feed Engine (AI-generated)
date: 2026-05-15
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-42207/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/Mage_ProductAlert_AddController'
      cs-uri-query|contains:
          - 'stockAction'
      cs-uri-query|contains:
          - 'uenc='
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse