Common Weakness Enumeration

CWE-420

Allowed

Unprotected Alternate Channel

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product protects a primary channel, but it does not use the same level of protection for an alternate channel.

71 vulnerabilities reference this CWE, most recent first.

GHSA-XP47-R464-469H

Vulnerability from github – Published: 2025-06-23 21:31 – Updated: 2025-06-23 21:31

Details

In Innoshop through 0.4.1, an authenticated attacker could exploit the File Manager functions in the admin panel to achieve code execution on the server, by uploading a crafted file and then renaming it to have a .php extension by using the Rename Function. This bypasses the initial check that uploaded files are image files. The application relies on frontend checks to restrict the administrator from changing the extension of uploaded files to .php. This restriction is easily bypassed with any proxy tool (e.g., BurpSuite). Once the attacker renames the file, and gives it the .php extension, a GET request can be used to trigger the execution of code on the server.

Severity

9.9 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

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{
  "affected": [],
  "aliases": [
    "CVE-2025-52921"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-420"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-23T12:15:22Z",
    "severity": "CRITICAL"
  },
  "details": "In Innoshop through 0.4.1, an authenticated attacker could exploit the File Manager functions in the admin panel to achieve code execution on the server, by uploading a crafted file and then renaming it to have a .php extension by using the Rename Function. This bypasses the initial check that uploaded files are image files. The application relies on frontend checks to restrict the administrator from changing the extension of uploaded files to .php. This restriction is easily bypassed with any proxy tool (e.g., BurpSuite). Once the attacker renames the file, and gives it the .php extension, a GET request can be used to trigger the execution of code on the server.",
  "id": "GHSA-xp47-r464-469h",
  "modified": "2025-06-23T21:31:56Z",
  "published": "2025-06-23T21:31:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52921"
    },
    {
      "type": "WEB",
      "url": "https://github.com/innocommerce/innoshop"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/@The_Hiker/how-i-found-multiple-cves-in-innoshop-0-4-1-12c8f84ad87f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation

Architecture and Design

Identify all alternate channels and use the same protection mechanisms that are used for the primary channels.

No CAPEC attack patterns related to this CWE.

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