Common Weakness Enumeration

CWE-94

Allowed-with-Review

Improper Control of Generation of Code ('Code Injection')

Abstraction: Base · Status: Draft

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

8343 vulnerabilities reference this CWE, most recent first.

GHSA-29JC-R7WJ-73VF

Vulnerability from github – Published: 2026-07-14 18:31 – Updated: 2026-07-14 18:31
VLAI
Details

A vulnerability was identified in spencermountain compromise up to 14.15.1. Affected is the function nlp.extend of the file src/API/extend.js of the component Public Root API. The manipulation of the argument plugin leads to improperly controlled modification of object prototype attributes. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The identifier of the patch is b4644ab7179700df0607521f61c1ee9b5f78d89d. Applying a patch is the recommended action to fix this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-15699"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-14T16:16:46Z",
    "severity": "LOW"
  },
  "details": "A vulnerability was identified in spencermountain compromise up to 14.15.1. Affected is the function nlp.extend of the file src/API/extend.js of the component Public Root API. The manipulation of the argument plugin leads to improperly controlled modification of object prototype attributes. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The identifier of the patch is b4644ab7179700df0607521f61c1ee9b5f78d89d. Applying a patch is the recommended action to fix this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.",
  "id": "GHSA-29jc-r7wj-73vf",
  "modified": "2026-07-14T18:31:55Z",
  "published": "2026-07-14T18:31:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15699"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spencermountain/compromise/issues/1208"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spencermountain/compromise/commit/b4644ab7179700df0607521f61c1ee9b5f78d89d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/spencermountain/compromise"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-15699"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/856016"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/378246"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/378246/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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-29M2-JVGJ-WX83

Vulnerability from github – Published: 2022-07-08 00:00 – Updated: 2022-07-16 00:00
VLAI
Details

Tenda AC10 US_AC10V1.0RTL_V15.03.06.26_multi_TD01 was discovered to contain a remote code execution (RCE) vulnerability via the lanIp parameter.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-32054"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-07-07T19:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Tenda AC10 US_AC10V1.0RTL_V15.03.06.26_multi_TD01 was discovered to contain a remote code execution (RCE) vulnerability via the lanIp parameter.",
  "id": "GHSA-29m2-jvgj-wx83",
  "modified": "2022-07-16T00:00:34Z",
  "published": "2022-07-08T00:00:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-32054"
    },
    {
      "type": "WEB",
      "url": "https://github.com/winmt/CVE/blob/main/Tenda%20AC10/README.md"
    }
  ],
  "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"
    }
  ]
}

GHSA-29M8-FQ8P-5FCW

Vulnerability from github – Published: 2022-08-10 00:00 – Updated: 2022-08-10 00:00
VLAI
Details

Azure Site Recovery Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-35824.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-35772"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-08-09T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "Azure Site Recovery Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-35824.",
  "id": "GHSA-29m8-fq8p-5fcw",
  "modified": "2022-08-10T00:00:17Z",
  "published": "2022-08-10T00:00:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-35772"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-35772"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-35772"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-29M8-WH9P-5WC4

Vulnerability from github – Published: 2025-03-27 15:31 – Updated: 2025-03-27 18:18
VLAI
Summary
Apache Kylin Code Injection via JDBC Configuration Alteration
Details

Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Kylin. If an attacker gets access to Kylin's system or project admin permission, the JDBC connection configuration maybe altered to execute arbitrary code from the remote. You are fine as long as the Kylin's system and project admin access is well protected.

This issue affects Apache Kylin: from 4.0.0 through 5.0.1.

Users are recommended to upgrade to version 5.0.2 or above, which fixes the issue.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.kylin:kylin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "5.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-30067"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-27T18:18:39Z",
    "nvd_published_at": "2025-03-27T15:16:02Z",
    "severity": "LOW"
  },
  "details": "Improper Control of Generation of Code (\u0027Code Injection\u0027) vulnerability in Apache Kylin. \nIf an attacker gets access to Kylin\u0027s system or project admin permission, the JDBC connection configuration maybe altered to execute arbitrary code from the remote. You are fine as long as the Kylin\u0027s system and project admin access is well protected.\n\nThis issue affects Apache Kylin: from 4.0.0 through 5.0.1.\n\nUsers are recommended to upgrade to version 5.0.2 or above, which fixes the issue.",
  "id": "GHSA-29m8-wh9p-5wc4",
  "modified": "2025-03-27T18:18:39Z",
  "published": "2025-03-27T15:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30067"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/kylin/commit/21d98f3ef29f71b50dacabbf039905f9f0f71b95"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/kylin"
    },
    {
      "type": "WEB",
      "url": "https://issues.apache.org/jira/browse/KYLIN-5994"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/6j19pt8yoqfphf1lprtrzoqkvz1gwbnc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Apache Kylin Code Injection via JDBC Configuration Alteration"
}

GHSA-29MQ-GWWX-VG5F

Vulnerability from github – Published: 2022-05-01 18:10 – Updated: 2022-05-01 18:10
VLAI
Details

Multiple PHP remote file inclusion vulnerabilities in the OpenWiki (formerly JD-Wiki) component (com_jd-wiki) 1.0.2, and possibly earlier, for Joomla! allow remote attackers to execute arbitrary PHP code via a URL in the mosConfig_absolute_path parameter to (1) dwpage.php or (2) wantedpages.php, different vectors than CVE-2006-4074. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2007-3130"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2007-06-08T16:30:00Z",
    "severity": "MODERATE"
  },
  "details": "Multiple PHP remote file inclusion vulnerabilities in the OpenWiki (formerly JD-Wiki) component (com_jd-wiki) 1.0.2, and possibly earlier, for Joomla! allow remote attackers to execute arbitrary PHP code via a URL in the mosConfig_absolute_path parameter to (1) dwpage.php or (2) wantedpages.php, different vectors than CVE-2006-4074.  NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.",
  "id": "GHSA-29mq-gwwx-vg5f",
  "modified": "2022-05-01T18:10:43Z",
  "published": "2022-05-01T18:10:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2007-3130"
    },
    {
      "type": "WEB",
      "url": "http://osvdb.org/37472"
    },
    {
      "type": "WEB",
      "url": "http://osvdb.org/37473"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/24342"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-29PR-6QRG-Q2X4

Vulnerability from github – Published: 2026-07-06 18:31 – Updated: 2026-07-06 18:31
VLAI
Details

An improper authorization vulnerability in the Plesk XML API allows an authenticated user to inject arbitrary configuration directives, resulting in arbitrary file write as root and full privilege escalation on the underlying server.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-48614"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-06T18:16:46Z",
    "severity": "CRITICAL"
  },
  "details": "An improper authorization vulnerability in the Plesk XML API allows an authenticated user to inject arbitrary configuration directives, resulting in arbitrary file write as root and full privilege escalation on the underlying server.",
  "id": "GHSA-29pr-6qrg-q2x4",
  "modified": "2026-07-06T18:31:17Z",
  "published": "2026-07-06T18:31:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48614"
    },
    {
      "type": "WEB",
      "url": "https://support.plesk.com/hc/en-us/articles/41171817973143-Vulnerability-in-Plesk-XML-API"
    }
  ],
  "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:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-29W8-9JWG-JVQ5

Vulnerability from github – Published: 2022-05-14 01:49 – Updated: 2022-05-14 01:49
VLAI
Details

Adobe Flash Player before 13.0.0.252 and 14.x and 15.x before 15.0.0.223 on Windows and OS X and before 11.2.202.418 on Linux, Adobe AIR before 15.0.0.356, Adobe AIR SDK before 15.0.0.356, and Adobe AIR SDK & Compiler before 15.0.0.356 allow attackers to execute arbitrary code by leveraging an unspecified "type confusion," a different vulnerability than CVE-2014-0577, CVE-2014-0585, CVE-2014-0586, and CVE-2014-0590.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2014-0584"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2014-11-11T23:55:00Z",
    "severity": "HIGH"
  },
  "details": "Adobe Flash Player before 13.0.0.252 and 14.x and 15.x before 15.0.0.223 on Windows and OS X and before 11.2.202.418 on Linux, Adobe AIR before 15.0.0.356, Adobe AIR SDK before 15.0.0.356, and Adobe AIR SDK \u0026 Compiler before 15.0.0.356 allow attackers to execute arbitrary code by leveraging an unspecified \"type confusion,\" a different vulnerability than CVE-2014-0577, CVE-2014-0585, CVE-2014-0586, and CVE-2014-0590.",
  "id": "GHSA-29w8-9jwg-jvq5",
  "modified": "2022-05-14T01:49:19Z",
  "published": "2022-05-14T01:49:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-0584"
    },
    {
      "type": "WEB",
      "url": "http://helpx.adobe.com/security/products/flash-player/apsb14-24.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00013.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-29WW-RPF8-H5RJ

Vulnerability from github – Published: 2022-05-17 04:29 – Updated: 2025-04-12 12:41
VLAI
Details

The SAP CRM Internet Sales module allows remote attackers to execute arbitrary commands via unspecified vectors.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2014-8661"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2014-11-06T15:55:00Z",
    "severity": "HIGH"
  },
  "details": "The SAP CRM Internet Sales module allows remote attackers to execute arbitrary commands via unspecified vectors.",
  "id": "GHSA-29ww-rpf8-h5rj",
  "modified": "2025-04-12T12:41:40Z",
  "published": "2022-05-17T04:29:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-8661"
    },
    {
      "type": "WEB",
      "url": "http://blog.onapsis.com/analyzing-sap-security-notes-october-2014-edition"
    },
    {
      "type": "WEB",
      "url": "http://service.sap.com/sap/support/notes/0002043404"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-29X9-GCCG-R992

Vulnerability from github – Published: 2025-02-20 15:31 – Updated: 2025-02-21 18:31
VLAI
Details

SQL Injection vulnerability in Uniclare Student portal v.2 and before allows a remote attacker to execute arbitrary code via the Forgot Password function.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-57401"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-20T15:15:13Z",
    "severity": "CRITICAL"
  },
  "details": "SQL Injection vulnerability in Uniclare Student portal v.2 and before allows a remote attacker to execute arbitrary code via the Forgot Password function.",
  "id": "GHSA-29x9-gccg-r992",
  "modified": "2025-02-21T18:31:12Z",
  "published": "2025-02-20T15:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57401"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aksingh82/CVE-2024-57401"
    },
    {
      "type": "WEB",
      "url": "https://studentportal.universitysolutions.in"
    }
  ],
  "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"
    }
  ]
}

GHSA-2C22-7F4C-FW6Q

Vulnerability from github – Published: 2022-05-17 01:25 – Updated: 2022-05-17 01:25
VLAI
Details

Google Chrome before 37.0.2062.94 does not properly handle the interaction of extensions, IPC, the sync API, and Google V8, which allows remote attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2014-3176.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2014-3177"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2014-08-27T01:55:00Z",
    "severity": "HIGH"
  },
  "details": "Google Chrome before 37.0.2062.94 does not properly handle the interaction of extensions, IPC, the sync API, and Google V8, which allows remote attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2014-3176.",
  "id": "GHSA-2c22-7f4c-fw6q",
  "modified": "2022-05-17T01:25:27Z",
  "published": "2022-05-17T01:25:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-3177"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/386988"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/95477"
    },
    {
      "type": "WEB",
      "url": "http://googlechromereleases.blogspot.com/2014/08/stable-channel-update_26.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00027.html"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/60268"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/61482"
    },
    {
      "type": "WEB",
      "url": "http://security.gentoo.org/glsa/glsa-201408-16.xml"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2014/dsa-3039"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/69404"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1030767"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Mitigation
Architecture and Design

Strategy: Refactoring

Refactor your program so that you do not have to dynamically generate code.

Mitigation
Architecture and Design
  • Run your code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which code can be executed by your product.
  • Examples include the Unix chroot jail and AppArmor. In general, managed code may provide some protection.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of your application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.
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.
  • To reduce the likelihood of code injection, use stringent allowlists that limit which constructs are allowed. If you are dynamically constructing code that invokes a function, then verifying that the input is alphanumeric might be insufficient. An attacker might still be able to reference a dangerous function that you did not intend to allow, such as system(), exec(), or exit().
Mitigation
Testing

Use dynamic tools and techniques that interact with the product using large test suites with many diverse inputs, such as fuzz testing (fuzzing), robustness testing, and fault injection. The product's operation may slow down, but it should not become unstable, crash, or generate incorrect results.

Mitigation MIT-32
Operation

Strategy: Compilation or Build Hardening

Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).

Mitigation MIT-32
Operation

Strategy: Environment Hardening

Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).

Mitigation
Implementation

For Python programs, it is frequently encouraged to use the ast.literal_eval() function instead of eval, since it is intentionally designed to avoid executing code. However, an adversary could still cause excessive memory or stack consumption via deeply nested structures [REF-1372], so the python documentation discourages use of ast.literal_eval() on untrusted data [REF-1373].

CAPEC-242: Code Injection

An adversary exploits a weakness in input validation on the target to inject new code into that which is currently executing. This differs from code inclusion in that code inclusion involves the addition or replacement of a reference to a code file, which is subsequently loaded by the target and used as part of the code of some application.

CAPEC-35: Leverage Executable Code in Non-Executable Files

An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.

CAPEC-77: Manipulating User-Controlled Variables

This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An adversary can override variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the adversary can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.