CWE-94
Allowed-with-ReviewImproper 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.
8287 vulnerabilities reference this CWE, most recent first.
GHSA-M83R-8RCP-WV5V
Vulnerability from github – Published: 2024-10-23 18:33 – Updated: 2024-10-23 18:33A vulnerability in the VPN web server of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary code with root-level privileges. Administrator-level privileges are required to exploit this vulnerability.
This vulnerability is due to improper validation of a specific file when it is read from system flash memory. An attacker could exploit this vulnerability by restoring a crafted backup file to an affected device. A successful exploit could allow the attacker to execute arbitrary code on the affected device after the next reload of the device, which could alter system behavior. Because the injected code could persist across device reboots, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High.
{
"affected": [],
"aliases": [
"CVE-2024-20485"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-23T18:15:12Z",
"severity": "MODERATE"
},
"details": "A vulnerability in the VPN web server of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary code with root-level privileges. Administrator-level privileges are required to exploit this vulnerability.\n\n This vulnerability is due to improper validation of a specific file when it is read from system flash memory. An attacker could exploit this vulnerability by restoring a crafted backup file to an affected device. A successful exploit could allow the attacker to execute arbitrary code on the affected device after the next reload of the device, which could alter system behavior. Because the injected code could persist across device reboots, Cisco has raised the Security Impact Rating (SIR) of this advisory from Medium to High.",
"id": "GHSA-m83r-8rcp-wv5v",
"modified": "2024-10-23T18:33:09Z",
"published": "2024-10-23T18:33:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-20485"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-persist-lce-vU3ekMJ3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-M866-467G-64FM
Vulnerability from github – Published: 2024-01-31 21:31 – Updated: 2024-01-31 21:31A vulnerability was found in openBI up to 1.0.8. It has been declared as critical. Affected by this vulnerability is the function index of the file /application/index/controller/Screen.php. The manipulation of the argument fileurl leads to code injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-252475.
{
"affected": [],
"aliases": [
"CVE-2024-1117"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-31T21:15:08Z",
"severity": "HIGH"
},
"details": "A vulnerability was found in openBI up to 1.0.8. It has been declared as critical. Affected by this vulnerability is the function index of the file /application/index/controller/Screen.php. The manipulation of the argument fileurl leads to code injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-252475.",
"id": "GHSA-m866-467g-64fm",
"modified": "2024-01-31T21:31:03Z",
"published": "2024-01-31T21:31:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1117"
},
{
"type": "WEB",
"url": "https://note.zhaoj.in/share/Liu1nbjddxu4"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.252475"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.252475"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-M869-MPFX-H3G2
Vulnerability from github – Published: 2024-06-16 03:30 – Updated: 2024-07-03 18:45In iTerm2 before 3.5.2, the "Terminal may report window title" setting is not honored, and thus remote code execution might occur but "is not trivially exploitable."
{
"affected": [],
"aliases": [
"CVE-2024-38395"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-16T01:15:48Z",
"severity": "CRITICAL"
},
"details": "In iTerm2 before 3.5.2, the \"Terminal may report window title\" setting is not honored, and thus remote code execution might occur but \"is not trivially exploitable.\"",
"id": "GHSA-m869-mpfx-h3g2",
"modified": "2024-07-03T18:45:28Z",
"published": "2024-06-16T03:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38395"
},
{
"type": "WEB",
"url": "https://gitlab.com/gnachman/iterm2/-/commit/f1e89f78dd72dcac3ba66d3d6f93db3f7f649219"
},
{
"type": "WEB",
"url": "https://gitlab.com/gnachman/iterm2/-/tags/v3.5.2"
},
{
"type": "WEB",
"url": "https://iterm2.com/downloads.html"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2024/06/15/1"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/06/17/1"
}
],
"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-M89R-HF5W-V6QG
Vulnerability from github – Published: 2024-10-02 06:30 – Updated: 2024-10-02 15:30FileSender before 2.49 allows server-side template injection (SSTI) for retrieving credentials.
{
"affected": [],
"aliases": [
"CVE-2024-45186"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-02T05:15:11Z",
"severity": "CRITICAL"
},
"details": "FileSender before 2.49 allows server-side template injection (SSTI) for retrieving credentials.",
"id": "GHSA-m89r-hf5w-v6qg",
"modified": "2024-10-02T15:30:38Z",
"published": "2024-10-02T06:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45186"
},
{
"type": "WEB",
"url": "https://filesender.org/vulnerability-in-filesender-versions-below-2-49-and-3-x-beta"
}
],
"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-M8H2-2Q9C-F24G
Vulnerability from github – Published: 2023-03-21 18:30 – Updated: 2025-02-25 21:31An authenticated attacker can leverage an exposed getattr() method via a Jinja template to smuggle OS commands and perform other actions that are normally expected to be private methods. This issue was resolved in the Managed and SaaS deployments on February 1, 2023, and in version 23.2.1 of the Self-Managed version of InsightCloudSec.
{
"affected": [],
"aliases": [
"CVE-2023-1304"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-21T17:15:00Z",
"severity": "HIGH"
},
"details": "An authenticated attacker can leverage an exposed getattr() method via a Jinja template to smuggle OS commands and perform other actions that are normally expected to be private methods. This issue was resolved in the Managed and SaaS deployments on February 1, 2023, and in version 23.2.1 of the Self-Managed version of InsightCloudSec.",
"id": "GHSA-m8h2-2q9c-f24g",
"modified": "2025-02-25T21:31:16Z",
"published": "2023-03-21T18:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1304"
},
{
"type": "WEB",
"url": "https://docs.divvycloud.com/changelog/23321-release-notes"
},
{
"type": "WEB",
"url": "https://nephosec.com/exploiting-rapid7s-insightcloudsec"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-M8H2-PJQ6-HMWV
Vulnerability from github – Published: 2025-08-13 18:31 – Updated: 2025-08-13 18:31NVIDIA Megatron-LM for all platforms contains a vulnerability in the tools component, where an attacker may exploit a code injection issue. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.
{
"affected": [],
"aliases": [
"CVE-2025-23305"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-13T18:15:30Z",
"severity": "HIGH"
},
"details": "NVIDIA Megatron-LM for all platforms contains a vulnerability in the tools component, where an attacker may exploit a code injection issue. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.",
"id": "GHSA-m8h2-pjq6-hmwv",
"modified": "2025-08-13T18:31:25Z",
"published": "2025-08-13T18:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23305"
},
{
"type": "WEB",
"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5685"
},
{
"type": "WEB",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-23305"
}
],
"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-M8JH-MJGC-CRHX
Vulnerability from github – Published: 2022-05-17 05:30 – Updated: 2022-05-17 05:30VisiWaveReport.exe in AZO Technologies, Inc. VisiWave Site Survey before 2.1.9 allows user-assisted remote attackers to execute arbitrary code via a (1) vws and (2) vwr file with an invalid Type property, which triggers an untrusted pointer dereference.
{
"affected": [],
"aliases": [
"CVE-2011-2386"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2011-06-08T10:36:00Z",
"severity": "HIGH"
},
"details": "VisiWaveReport.exe in AZO Technologies, Inc. VisiWave Site Survey before 2.1.9 allows user-assisted remote attackers to execute arbitrary code via a (1) vws and (2) vwr file with an invalid Type property, which triggers an untrusted pointer dereference.",
"id": "GHSA-m8jh-mjgc-crhx",
"modified": "2022-05-17T05:30:42Z",
"published": "2022-05-17T05:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-2386"
},
{
"type": "WEB",
"url": "http://osvdb.org/72464"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/44636"
},
{
"type": "WEB",
"url": "http://www.exploit-db.com/exploits/17317"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/47948"
},
{
"type": "WEB",
"url": "http://www.stratsec.net/Research/Advisories/VisiWave-Site-Survey-Report-Trusted-Pointer-%28SS-20"
},
{
"type": "WEB",
"url": "http://www.visiwave.com/blog/index.php?/archives/4-Version-2.1.9-Released.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-M8P4-RRQ5-QVMF
Vulnerability from github – Published: 2026-07-01 00:34 – Updated: 2026-07-01 00:34txtai through 9.10.0, fixed in commit 11b32da, exposes an API /reindex endpoint whose function body parameter is resolved through txtai.util.Resolver, which performs import and getattr on the caller-supplied dotted path with no allowlist. When the API is exposed with no TOKEN configured (authentication is opt-in, so all endpoints are unauthenticated) and the index is configured writable, a remote attacker can set function to an arbitrary callable such as subprocess.getoutput, achieving remote code execution as the server process during reindexing. Exploitation requires those deployment conditions (API exposed, no TOKEN, writable index); it is not the default configuration. The fix gates the endpoint behind a new reindex configuration flag.
{
"affected": [],
"aliases": [
"CVE-2026-58449"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-30T22:16:58Z",
"severity": "CRITICAL"
},
"details": "txtai through 9.10.0, fixed in commit 11b32da, exposes an API /reindex endpoint whose function body parameter is resolved through txtai.util.Resolver, which performs __import__ and getattr on the caller-supplied dotted path with no allowlist. When the API is exposed with no TOKEN configured (authentication is opt-in, so all endpoints are unauthenticated) and the index is configured writable, a remote attacker can set function to an arbitrary callable such as subprocess.getoutput, achieving remote code execution as the server process during reindexing. Exploitation requires those deployment conditions (API exposed, no TOKEN, writable index); it is not the default configuration. The fix gates the endpoint behind a new reindex configuration flag.",
"id": "GHSA-m8p4-rrq5-qvmf",
"modified": "2026-07-01T00:34:01Z",
"published": "2026-07-01T00:34:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58449"
},
{
"type": "WEB",
"url": "https://github.com/neuml/txtai/issues/1111"
},
{
"type": "WEB",
"url": "https://github.com/neuml/txtai/issues/1122"
},
{
"type": "WEB",
"url": "https://github.com/neuml/txtai/commit/11b32da720f03276199ebc5583c15fc5d1ccafd3"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/txtai-unauthenticated-remote-code-execution-via-unsafe-reflection-in-api-reindex-function-parameter"
}
],
"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:N/AC:L/AT:N/PR:N/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-M8XJ-66CC-5WMQ
Vulnerability from github – Published: 2022-05-02 03:48 – Updated: 2022-05-02 03:48PHP remote file inclusion vulnerability in Fiji Web Design Ajax Chat (com_ajaxchat) component 1.0 for Joomla! allows remote attackers to execute arbitrary PHP code via a URL in the GLOBALS[mosConfig_absolute_path] parameter to tests/ajcuser.php.
{
"affected": [],
"aliases": [
"CVE-2009-3822"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2009-10-28T10:30:00Z",
"severity": "HIGH"
},
"details": "PHP remote file inclusion vulnerability in Fiji Web Design Ajax Chat (com_ajaxchat) component 1.0 for Joomla! allows remote attackers to execute arbitrary PHP code via a URL in the GLOBALS[mosConfig_absolute_path] parameter to tests/ajcuser.php.",
"id": "GHSA-m8xj-66cc-5wmq",
"modified": "2022-05-02T03:48:54Z",
"published": "2022-05-02T03:48:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-3822"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/37087"
},
{
"type": "WEB",
"url": "http://www.packetstormsecurity.org/0910-exploits/joomlaajaxchat-rfi.txt"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/36731"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2009/2968"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-M923-W2GJ-V43G
Vulnerability from github – Published: 2022-05-17 05:03 – Updated: 2024-09-20 21:10The renderLocalView function in render/views.py in graphite-web in Graphite 0.9.5 through 0.9.10 uses the pickle Python module unsafely, which allows remote attackers to execute arbitrary code via a crafted serialized object.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.9.10"
},
"package": {
"ecosystem": "PyPI",
"name": "graphite-web"
},
"ranges": [
{
"events": [
{
"introduced": "0.9.5"
},
{
"fixed": "0.9.11"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2013-5093"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": true,
"github_reviewed_at": "2023-08-29T19:01:29Z",
"nvd_published_at": "2013-09-27T10:08:00Z",
"severity": "CRITICAL"
},
"details": "The renderLocalView function in render/views.py in graphite-web in Graphite 0.9.5 through 0.9.10 uses the pickle Python module unsafely, which allows remote attackers to execute arbitrary code via a crafted serialized object.",
"id": "GHSA-m923-w2gj-v43g",
"modified": "2024-09-20T21:10:09Z",
"published": "2022-05-17T05:03:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-5093"
},
{
"type": "PACKAGE",
"url": "https://github.com/graphite-project/graphite-web"
},
{
"type": "WEB",
"url": "https://github.com/graphite-project/graphite-web/blob/d39d455622127e479d8c4e7760311e3883cfd086/docs/releases/0_9_11.rst"
},
{
"type": "WEB",
"url": "https://github.com/graphite-project/graphite-web/blob/master/docs/releases/0_9_11.rst"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/graphite-web/PYSEC-2013-3.yaml"
},
{
"type": "WEB",
"url": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/webapp/graphite_pickle_exec.rb"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20200228174538/http://www.securityfocus.com/bid/61894"
},
{
"type": "WEB",
"url": "http://ceriksen.com/2013/08/20/graphite-remote-code-execution-vulnerability-advisory"
},
{
"type": "WEB",
"url": "http://www.exploit-db.com/exploits/27752"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
"type": "CVSS_V4"
}
],
"summary": "graphite-web is vulnerable to Remote Code Execution via renderLocalView function "
}
Mitigation
Strategy: Refactoring
Refactor your program so that you do not have to dynamically generate code.
Mitigation
- 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
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
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
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
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
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.