CVE-2026-7469 — Tenda 4G300 US_4G300V1.0Mt_V1.01.42_CN_TDC01 Command Injection

title: CVE-2026-7469 - Tenda 4G300 Command Injection via DelFil
id: scw-2026-04-30-ai-1
status: experimental
level: critical
description: |
  Detects attempts to exploit CVE-2026-7469 by targeting the DelFil endpoint with a crafted delflag parameter. The presence of shell metacharacters like backticks, semicolons, pipes, or dollar signs within the delflag parameter indicates a potential command injection attempt.
author: SCW Feed Engine (AI-generated)
date: 2026-04-30
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-7469/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/goform/DelFil'
      cs-uri-query|contains:
          - 'delflag='
      cs-uri-query|contains:
          - '`'
      cs-uri-query|contains:
          - ';'
      cs-uri-query|contains:
          - '|'
      cs-uri-query|contains:
          - '$'
      condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse