Common Weakness Enumeration
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.
8870 vulnerabilities reference this CWE, most recent first.
CVE-2026-16486 (GCVE-0-2026-16486)
Vulnerability from cvelistv5 – Published: 2026-07-21 22:45 – Updated: 2026-07-22 18:48 X_Freeware
VLAI
EPSS
VEX
Title
SourceCodester Class and Exam Timetabling System BSIS.php cross site scripting
Summary
A vulnerability was found in SourceCodester Class and Exam Timetabling System 1.0. This affects an unknown part of the file /BSIS.php. Performing a manipulation of the argument day results in cross site scripting. The attack may be initiated remotely. The exploit has been made public and could be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 18:31 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/380944 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/380944/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16486 | third-party-advisory |
| https://vuldb.com/submit/859907 | third-party-advisory |
| https://github.com/kurshidheba852-hub/My-cve-repo… | exploitissue-tracking |
| https://www.sourcecodester.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SourceCodester | Class and Exam Timetabling System |
Affected:
1.0
cpe:2.3:a:sourcecodester:class_and_exam_timetabling_system:*:*:*:*:*:*:*:* |
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CVE-2026-16485 (GCVE-0-2026-16485)
Vulnerability from cvelistv5 – Published: 2026-07-21 22:00 – Updated: 2026-07-22 15:18 X_Freeware
VLAI
EPSS
VEX
Title
SourceCodester Class and Exam Timetabling System class.php cross site scripting
Summary
A vulnerability has been found in SourceCodester Class and Exam Timetabling System 1.0. Affected by this issue is some unknown functionality of the file /class.php. Such manipulation of the argument day leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 15:18 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/380943 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/380943/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16485 | third-party-advisory |
| https://vuldb.com/submit/859906 | third-party-advisory |
| https://github.com/ashfaqsharif47-arch/Web-RCE/issues/1 | exploitissue-tracking |
| https://www.sourcecodester.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SourceCodester | Class and Exam Timetabling System |
Affected:
1.0
cpe:2.3:a:sourcecodester:class_and_exam_timetabling_system:*:*:*:*:*:*:*:* |
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CVE-2026-16229 (GCVE-0-2026-16229)
Vulnerability from cvelistv5 – Published: 2026-07-19 09:45 – Updated: 2026-07-21 14:52 X_Freeware
VLAI
EPSS
VEX
Title
itsourcecode Courier Management System index.php cross site scripting
Summary
A flaw has been found in itsourcecode Courier Management System up to 1.0. Affected by this vulnerability is an unknown functionality of the file /index.php. Executing a manipulation of the argument page can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been published and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 14:49 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/380051 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/380051/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16229 | third-party-advisory |
| https://vuldb.com/submit/858250 | third-party-advisory |
| https://github.com/saintpierrezgnk4950-pixel/CVE-… | exploitissue-tracking |
| https://itsourcecode.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| itsourcecode | Courier Management System |
Affected:
1.0
cpe:2.3:a:itsourcecode:courier_management_system:*:*:*:*:*:*:*:* |
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CVE-2026-16220 (GCVE-0-2026-16220)
Vulnerability from cvelistv5 – Published: 2026-07-19 06:15 – Updated: 2026-07-22 14:35 X_Freeware
VLAI
EPSS
VEX
Title
code-projects Online Examination System account.php cross site scripting
Summary
A vulnerability has been found in code-projects Online Examination System 1.0. This vulnerability affects unknown code of the file /account.php?q=quiz. Such manipulation of the argument eid/n/t leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 14:35 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/380043 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/380043/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16220 | third-party-advisory |
| https://vuldb.com/submit/857999 | third-party-advisory |
| https://github.com/zzzxc643/CVE1/blob/main/projec… | exploit |
| https://code-projects.org/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| code-projects | Online Examination System |
Affected:
1.0
cpe:2.3:a:code-projects:online_examination_system:*:*:*:*:*:*:*:* |
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CVE-2026-16205 (GCVE-0-2026-16205)
Vulnerability from cvelistv5 – Published: 2026-07-19 02:00 – Updated: 2026-07-20 19:10 X_Open Source
VLAI
EPSS
VEX
Title
Pluck CMS Albums albums.admin.php htmlspecialchars_decode cross site scripting
Summary
A weakness has been identified in Pluck CMS up to 4.7.21. This vulnerability affects the function htmlspecialchars_decode of the file data/modules/albums/albums.admin.php of the component Albums Module. Executing a manipulation of the argument Info can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 17:11 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/380021 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/380021/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16205 | third-party-advisory |
| https://vuldb.com/submit/857798 | third-party-advisory |
| https://github.com/pluck-cms/pluck/issues/145 | exploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Pluck | CMS |
Affected:
4.7.0
Affected: 4.7.1 Affected: 4.7.2 Affected: 4.7.3 Affected: 4.7.4 Affected: 4.7.5 Affected: 4.7.6 Affected: 4.7.7 Affected: 4.7.8 Affected: 4.7.9 Affected: 4.7.10 Affected: 4.7.11 Affected: 4.7.12 Affected: 4.7.13 Affected: 4.7.14 Affected: 4.7.15 Affected: 4.7.16 Affected: 4.7.17 Affected: 4.7.18 Affected: 4.7.19 Affected: 4.7.20 Affected: 4.7.21 cpe:2.3:a:pluck:cms:*:*:*:*:*:*:*:* |
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CVE-2026-16204 (GCVE-0-2026-16204)
Vulnerability from cvelistv5 – Published: 2026-07-19 01:45 – Updated: 2026-07-21 14:34
VLAI
EPSS
VEX
Title
zevorn rt-claw Telegram-to-AI Tool Execution Flow script.c tool_run_script_execute code injection
Summary
A security flaw has been discovered in zevorn rt-claw up to 0.2.0. This affects the function tool_run_script_execute of the file claw/services/tools/script.c of the component Telegram-to-AI Tool Execution Flow. Performing a manipulation results in code injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 14:33 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/380020 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/380020/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16204 | third-party-advisory |
| https://vuldb.com/submit/857784 | third-party-advisory |
| https://github.com/zevorn/rt-claw/issues/138 | exploitissue-tracking |
| https://github.com/zevorn/rt-claw/ | product |
Impacted products
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CVE-2026-16203 (GCVE-0-2026-16203)
Vulnerability from cvelistv5 – Published: 2026-07-19 01:30 – Updated: 2026-07-20 13:43 X_Freeware
VLAI
EPSS
VEX
Title
SourceCodester Class and Exam Timetabling System forCYS.php cross site scripting
Summary
A vulnerability was identified in SourceCodester Class and Exam Timetabling System 1.0. Affected by this issue is some unknown functionality of the file /forCYS.php. Such manipulation of the argument course leads to cross site scripting. The attack may be performed from remote. The exploit is publicly available and might be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 13:42 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/380019 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/380019/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16203 | third-party-advisory |
| https://vuldb.com/submit/857766 | third-party-advisory |
| https://github.com/AlbaDove/cve/issues/8 | exploitissue-tracking |
| https://www.sourcecodester.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SourceCodester | Class and Exam Timetabling System |
Affected:
1.0
cpe:2.3:a:sourcecodester:class_and_exam_timetabling_system:*:*:*:*:*:*:*:* |
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CVE-2026-16202 (GCVE-0-2026-16202)
Vulnerability from cvelistv5 – Published: 2026-07-19 01:15 – Updated: 2026-07-22 15:03 X_Freeware
VLAI
EPSS
VEX
Title
SourceCodester Class and Exam Timetabling System CYS.php cross site scripting
Summary
A vulnerability was determined in SourceCodester Class and Exam Timetabling System 1.0. Affected by this vulnerability is an unknown functionality of the file /CYS.php. This manipulation of the argument course causes cross site scripting. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 15:03 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/380018 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/380018/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16202 | third-party-advisory |
| https://vuldb.com/submit/857765 | third-party-advisory |
| https://github.com/AlbaDove/cve/issues/9 | exploitissue-tracking |
| https://www.sourcecodester.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SourceCodester | Class and Exam Timetabling System |
Affected:
1.0
cpe:2.3:a:sourcecodester:class_and_exam_timetabling_system:*:*:*:*:*:*:*:* |
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CVE-2026-16156 (GCVE-0-2026-16156)
Vulnerability from cvelistv5 – Published: 2026-07-18 21:00 – Updated: 2026-07-21 14:58 X_Freeware
VLAI
EPSS
VEX
Title
SourceCodester Class and Exam Timetabling System forexam.php cross site scripting
Summary
A security flaw has been discovered in SourceCodester Class and Exam Timetabling System 1.0. This affects an unknown part of the file /forexam.php. The manipulation of the argument day results in cross site scripting. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 13:40 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/379921 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/379921/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16156 | third-party-advisory |
| https://vuldb.com/submit/857081 | third-party-advisory |
| https://github.com/justconter/cve/issues/3 | exploitissue-tracking |
| https://www.sourcecodester.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SourceCodester | Class and Exam Timetabling System |
Affected:
1.0
cpe:2.3:a:sourcecodester:class_and_exam_timetabling_system:*:*:*:*:*:*:*:* |
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CVE-2026-16155 (GCVE-0-2026-16155)
Vulnerability from cvelistv5 – Published: 2026-07-18 20:45 – Updated: 2026-07-21 13:58 X_Freeware
VLAI
EPSS
VEX
Title
SourceCodester Class and Exam Timetabling System schoolyr.php cross site scripting
Summary
A vulnerability was identified in SourceCodester Class and Exam Timetabling System 1.0. Affected by this issue is some unknown functionality of the file /schoolyr.php. The manipulation of the argument sy leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 13:57 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/379920 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/379920/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-16155 | third-party-advisory |
| https://vuldb.com/submit/857080 | third-party-advisory |
| https://github.com/justconter/cve/issues/4 | exploitissue-tracking |
| https://www.sourcecodester.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SourceCodester | Class and Exam Timetabling System |
Affected:
1.0
cpe:2.3:a:sourcecodester:class_and_exam_timetabling_system:*:*:*:*:*:*:*:* |
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"lang": "en",
"value": "A vulnerability was identified in SourceCodester Class and Exam Timetabling System 1.0. Affected by this issue is some unknown functionality of the file /schoolyr.php. The manipulation of the argument sy leads to cross site scripting. It is possible to initiate the attack remotely. The exploit is publicly available and might be used."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 5.1,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 3.5,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 3.5,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 4,
"vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross Site Scripting",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "Code Injection",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-18T20:45:09.905Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-379920 | SourceCodester Class and Exam Timetabling System schoolyr.php cross site scripting",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/379920"
},
{
"name": "VDB-379920 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/379920/cti"
},
{
"name": "CVE-2026-16155 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2026-16155"
},
{
"name": "Submit #857080 | sourcecodester Class and Exam Timetabling System V1.0 cross site scripting",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/857080"
},
{
"tags": [
"exploit",
"issue-tracking"
],
"url": "https://github.com/justconter/cve/issues/4"
},
{
"tags": [
"product"
],
"url": "https://www.sourcecodester.com/"
}
],
"tags": [
"x_freeware"
],
"timeline": [
{
"lang": "en",
"time": "2026-07-17T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-07-17T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-07-17T21:39:28.000Z",
"value": "VulDB entry last update"
}
],
"title": "SourceCodester Class and Exam Timetabling System schoolyr.php cross site scripting"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-16155",
"datePublished": "2026-07-18T20:45:09.905Z",
"dateReserved": "2026-07-17T19:34:09.553Z",
"dateUpdated": "2026-07-21T13:58:10.431Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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.