Common Weakness Enumeration

CWE-428

Allowed

Unquoted Search Path or Element

Abstraction: Base · Status: Draft

The product uses a search path that contains an unquoted element, in which the element contains whitespace or other separators. This can cause the product to access resources in a parent path.

765 vulnerabilities reference this CWE, most recent first.

GHSA-W62M-J7RV-P5FF

Vulnerability from github – Published: 2026-05-16 18:31 – Updated: 2026-05-16 18:31
VLAI
Details

Syncplify.me Server! 5.0.37 contains an unquoted service path vulnerability in the SMWebRestServicev5 service that allows local attackers to escalate privileges by exploiting the unquoted binary path. Attackers can insert a malicious executable into the service path and execute it with LocalSystem privileges when the service restarts or the system reboots.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-37230"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-428"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-16T16:16:18Z",
    "severity": "HIGH"
  },
  "details": "Syncplify.me Server! 5.0.37 contains an unquoted service path vulnerability in the SMWebRestServicev5 service that allows local attackers to escalate privileges by exploiting the unquoted binary path. Attackers can insert a malicious executable into the service path and execute it with LocalSystem privileges when the service restarts or the system reboots.",
  "id": "GHSA-w62m-j7rv-p5ff",
  "modified": "2026-05-16T18:31:36Z",
  "published": "2026-05-16T18:31:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-37230"
    },
    {
      "type": "WEB",
      "url": "https://download.syncplify.me/SMServer_Setup.exe"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/49009"
    },
    {
      "type": "WEB",
      "url": "https://www.syncplify.me"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/syncplify-me-server-unquoted-service-path-privilege-escalation"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-W78P-VWM4-M8Q9

Vulnerability from github – Published: 2026-06-18 21:32 – Updated: 2026-06-18 21:32
VLAI
Details

Punto Switcher through 4.5.0.583 contains an unquoted search path element vulnerability that allows local attackers to execute arbitrary code by exploiting the application's call to WinExec without a fully qualified path for RunDll32.exe when invoking shell32.dll Control_RunDLL input.dll. Attackers can place a malicious executable earlier in the search order to achieve arbitrary code execution in the context of the affected user.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-25865"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-428"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-18T20:16:12Z",
    "severity": "HIGH"
  },
  "details": "Punto Switcher through 4.5.0.583 contains an unquoted search path element vulnerability that allows local attackers to execute arbitrary code by exploiting the application\u0027s call to WinExec without a fully qualified path for RunDll32.exe when invoking shell32.dll Control_RunDLL input.dll. Attackers can place a malicious executable earlier in the search order to achieve arbitrary code execution in the context of the affected user.",
  "id": "GHSA-w78p-vwm4-m8q9",
  "modified": "2026-06-18T21:32:34Z",
  "published": "2026-06-18T21:32:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25865"
    },
    {
      "type": "WEB",
      "url": "https://spektion.com/articles/cve-2026-25865-punto-switcher"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/punto-switcher-unquoted-search-path-via-winexec"
    },
    {
      "type": "WEB",
      "url": "https://yandex.ru/soft/punto"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-W8J4-RC5F-V6F4

Vulnerability from github – Published: 2026-01-14 00:31 – Updated: 2026-01-14 00:31
VLAI
Details

CONTPAQi AdminPAQ 14.0.0 contains an unquoted service path vulnerability in the AppKeyLicenseServer service running with LocalSystem privileges. Attackers can exploit the unquoted path to inject malicious code in the service binary path, potentially executing arbitrary code with elevated system privileges during service startup.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-50938"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-428"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-13T23:15:59Z",
    "severity": "HIGH"
  },
  "details": "CONTPAQi AdminPAQ 14.0.0 contains an unquoted service path vulnerability in the AppKeyLicenseServer service running with LocalSystem privileges. Attackers can exploit the unquoted path to inject malicious code in the service binary path, potentially executing arbitrary code with elevated system privileges during service startup.",
  "id": "GHSA-w8j4-rc5f-v6f4",
  "modified": "2026-01-14T00:31:28Z",
  "published": "2026-01-14T00:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50938"
    },
    {
      "type": "WEB",
      "url": "https://www.contpaqi.com/descargas"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/50690"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/contpaqi-adminpaq-unquoted-service-path"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-W8X6-W4F2-4MX4

Vulnerability from github – Published: 2026-01-14 00:31 – Updated: 2026-01-14 00:31
VLAI
Details

Flame II HSPA USB Modem contains an unquoted service path vulnerability in its Windows service configuration. Attackers can exploit the unquoted path in 'C:\Program Files (x86)\Internet Telcel\ApplicationController.exe' to execute arbitrary code with elevated system privileges.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-50935"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-428"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-13T23:15:58Z",
    "severity": "HIGH"
  },
  "details": "Flame II HSPA USB Modem contains an unquoted service path vulnerability in its Windows service configuration. Attackers can exploit the unquoted path in \u0027C:\\Program Files (x86)\\Internet Telcel\\ApplicationController.exe\u0027 to execute arbitrary code with elevated system privileges.",
  "id": "GHSA-w8x6-w4f2-4mx4",
  "modified": "2026-01-14T00:31:28Z",
  "published": "2026-01-14T00:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50935"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20160402093509/https://www.telcel.com/personas/equipos/modems-usb/alcatel/x602a"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/50708"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/flame-ii-modem-usb-unquoted-service-path"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-WC9Q-RCHP-5RXF

Vulnerability from github – Published: 2022-05-24 17:33 – Updated: 2022-05-24 17:33
VLAI
Details

Dr.Fone 3.0.0 allows local users to gain privileges via a Trojan horse DriverInstall.exe because %PROGRAMFILES(X86)%\Wondershare\dr.fone\Library\DriverInstaller has Full Control for BUILTIN\Users.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-27992"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-428"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-11-02T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "Dr.Fone 3.0.0 allows local users to gain privileges via a Trojan horse DriverInstall.exe because %PROGRAMFILES(X86)%\\Wondershare\\dr.fone\\Library\\DriverInstaller has Full Control for BUILTIN\\Users.",
  "id": "GHSA-wc9q-rchp-5rxf",
  "modified": "2022-05-24T17:33:00Z",
  "published": "2022-05-24T17:33:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27992"
    },
    {
      "type": "WEB",
      "url": "https://drfone.wondershare.com"
    },
    {
      "type": "WEB",
      "url": "https://packetstormsecurity.com/files/159775/Wondershare-Dr.Fone-3.0.0-Unquoted-Service-Path.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-WG6J-WQ96-5MM4

Vulnerability from github – Published: 2026-01-27 21:31 – Updated: 2026-01-27 21:31
VLAI
Details

Atheros Coex Service Application 8.0.0.255 contains an unquoted service path vulnerability in its Windows service configuration. Attackers can exploit the unquoted path by placing malicious executables in the service path to gain elevated system privileges during service startup.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-36979"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-428"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-27T19:16:10Z",
    "severity": "HIGH"
  },
  "details": "Atheros Coex Service Application 8.0.0.255 contains an unquoted service path vulnerability in its Windows service configuration. Attackers can exploit the unquoted path by placing malicious executables in the service path to gain elevated system privileges during service startup.",
  "id": "GHSA-wg6j-wq96-5mm4",
  "modified": "2026-01-27T21:31:47Z",
  "published": "2026-01-27T21:31:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36979"
    },
    {
      "type": "WEB",
      "url": "https://www.boostbyreason.com/resource-file-9102-ath_coexagent-exe.aspx"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/49053"
    },
    {
      "type": "WEB",
      "url": "https://www.file.net/process/ath_coexagent.exe.html"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/atheros-coex-service-application-zatheros-btwlan-coex-agent-unquoted-service-path"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-WJ5W-RHM5-2VF6

Vulnerability from github – Published: 2024-05-03 03:30 – Updated: 2024-05-03 03:30
VLAI
Details

Triangle MicroWorks SCADA Data Gateway GTWWebMonitorService Unquoted Search Path Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute code on affected installations of Triangle MicroWorks SCADA Data Gateway. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within the configuration of the GTWWebMonitorService service. The path to the service executable contains spaces not surrounded by quotations. An attacker can leverage this vulnerability to execute arbitrary code in the context of root. Was ZDI-CAN-20538.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-39464"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-428"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-03T03:15:11Z",
    "severity": "HIGH"
  },
  "details": "Triangle MicroWorks SCADA Data Gateway GTWWebMonitorService Unquoted Search Path Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute code on affected installations of Triangle MicroWorks SCADA Data Gateway. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.\n\nThe specific flaw exists within the configuration of the GTWWebMonitorService service. The path to the service executable contains spaces not surrounded by quotations. An attacker can leverage this vulnerability to execute arbitrary code in the context of root. Was ZDI-CAN-20538.",
  "id": "GHSA-wj5w-rhm5-2vf6",
  "modified": "2024-05-03T03:30:56Z",
  "published": "2024-05-03T03:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39464"
    },
    {
      "type": "WEB",
      "url": "https://www.trianglemicroworks.com/products/scada-data-gateway/what\u0027s-new"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-23-1032"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WM68-2Q7P-5XH6

Vulnerability from github – Published: 2022-04-02 00:00 – Updated: 2022-04-09 00:00
VLAI
Details

FreeFtpd version 1.0.13 and below contains an unquoted service path vulnerability which allows local users to launch processes with elevated privileges.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-27052"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-428"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-31T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "FreeFtpd version 1.0.13 and below contains an unquoted service path vulnerability which allows local users to launch processes with elevated privileges.",
  "id": "GHSA-wm68-2q7p-5xh6",
  "modified": "2022-04-09T00:00:50Z",
  "published": "2022-04-02T00:00:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27052"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ycdxsb/Vuln/tree/main/FreeFTPd-Unquoted-Service-Path"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-WMXP-P5XQ-V7FC

Vulnerability from github – Published: 2026-06-19 15:33 – Updated: 2026-06-19 15:33
VLAI
Details

Wise Care 365 4.27 and Wise Disk Cleaner 9.29 contain unquoted service path vulnerabilities in the WiseBootAssistant and SpyHunter 4 Service respectively, allowing local users to execute arbitrary code with SYSTEM privileges. Attackers can insert malicious executables in the system root path that execute during service startup or system reboot with elevated privileges.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2016-20093"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-428"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-19T15:16:33Z",
    "severity": "HIGH"
  },
  "details": "Wise Care 365 4.27 and Wise Disk Cleaner 9.29 contain unquoted service path vulnerabilities in the WiseBootAssistant and SpyHunter 4 Service respectively, allowing local users to execute arbitrary code with SYSTEM privileges. Attackers can insert malicious executables in the system root path that execute during service startup or system reboot with elevated privileges.",
  "id": "GHSA-wmxp-p5xq-v7fc",
  "modified": "2026-06-19T15:33:18Z",
  "published": "2026-06-19T15:33:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-20093"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/40417"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/wise-care-365-and-wise-disk-cleaner-unquoted-service-path-privilege-escalation"
    },
    {
      "type": "WEB",
      "url": "http://www.wisecleaner.com"
    },
    {
      "type": "WEB",
      "url": "http://www.wisecleaner.com/wise-disk-cleaner.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-WMXR-3XF2-7GJQ

Vulnerability from github – Published: 2026-02-09 09:30 – Updated: 2026-02-09 09:30
VLAI
Details

Products provided by Oki Electric Industry Co., Ltd. and its OEM products (Ricoh Co., Ltd., Murata Machinery, Ltd.) register Windows services with unquoted file paths. A user with the write permission on the root directory of the system drive may execute arbitrary code with SYSTEM privilege.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-24466"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-428"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-09T07:16:18Z",
    "severity": "HIGH"
  },
  "details": "Products provided by Oki Electric Industry Co., Ltd. and its OEM products (Ricoh Co., Ltd., Murata Machinery, Ltd.) register Windows services with unquoted file paths. A user with the write permission on the root directory of the system drive may execute arbitrary code with SYSTEM privilege.",
  "id": "GHSA-wmxr-3xf2-7gjq",
  "modified": "2026-02-09T09:30:21Z",
  "published": "2026-02-09T09:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24466"
    },
    {
      "type": "WEB",
      "url": "https://jp.ricoh.com/security/products/vulnerabilities/vul?id=ricoh-2026-000002"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN55395471"
    },
    {
      "type": "WEB",
      "url": "https://www.muratec.jp/ce/support/announce_sp_20260209.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oki.com/jp/printing/support/important-information/2026/info-260209/index.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oki.com/jp/product_security/sa_2026_0001_en.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Mitigation
Implementation

Properly quote the full search path before executing a program on the system.

Mitigation MIT-5
Implementation

Strategy: Input Validation

  • Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
Mitigation MIT-20
Implementation

Strategy: Input Validation

Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.

No CAPEC attack patterns related to this CWE.