Weakness (CWE)
CWE-94: Improper Control of Generation of Code
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.
How to prevent it (7 mitigations)
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Architecture and Design
Refactor your program so that you do not have to dynamically generate code.
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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.
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Implementation
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().
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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.
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Operation
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).
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Operation
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).
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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].
Source: MITRE CWE-94
1,073 results · Clear filters · Feed
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Low 2.4
MaxSite CMS Redirect Plugin cross site scripting
A vulnerability was detected in MaxSite CMS up to 109.3. This affects an unknown part of the component Redirect Plugin. The manipulation of the argument f_all/f_all404 results in cross site scripting. The attack can be launched remotely. The exploit is now pu…
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Low 2.4
MaxSite CMS Antispam Plugin plugin_antispam cross site scripting
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Low 2.4
Datacom DM4100 Ethernet Configuration cross site scripting
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Low 2.4
Datacom DM4100 VLAN Page cross site scripting
A vulnerability has been found in Datacom DM4100 1.3.6.1.4.1.3709. Affected by this issue is some unknown functionality of the component VLAN Page. Such manipulation of the argument VLAN Name leads to cross site scripting. The attack may be performed from rem…
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Low 2.4
BIVOCOM TR321 Wireless Setting cross site scripting
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Low 2.4
BDCOM P3310D New RMON Statistics cross site scripting
A vulnerability was detected in BDCOM P3310D 0.4.2 10.1.0F Build 86345. Affected is an unknown function of the component New RMON Statistics Page. The manipulation of the argument Owner results in cross site scripting. The attack can be executed remotely. The…
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Low 2.4
BDCOM P3310D New RMON History cross site scripting
A security vulnerability has been detected in BDCOM P3310D 0.4.2 10.1.0F Build 86345. This impacts an unknown function of the component New RMON History Page. The manipulation of the argument Owner leads to cross site scripting. Remote exploitation of the att…
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Low 2.4
BDCOM P3310D rmon event Tab cross site scripting
A weakness has been identified in BDCOM P3310D 0.4.2 10.1.0F Build 86345. This affects an unknown function of the component rmon event Tab. Executing a manipulation of the argument Description can lead to cross site scripting. The attack may be launched remot…
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Low 2.4
BDCOM P3310D New User index.asp cross site scripting
A security flaw has been discovered in BDCOM P3310D 0.4.2 10.1.0F Build 86345. The impacted element is an unknown function of the file /index.asp of the component New User Page. Performing a manipulation of the argument User name results in cross site scripti…
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Low 3.5
projeto-siga novo cross site scripting
A vulnerability was found in projeto-siga siga 11.0.3.18. The affected element is an unknown function of the file /sigawf/app/responsavel/novo. Performing a manipulation of the argument Nome/Descrição results in cross site scripting. The attack can be initiat…
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Low 3.5
Bagisto Custom Scripts cross site scripting
A vulnerability was determined in Bagisto up to 2.3.15. Affected by this vulnerability is an unknown functionality of the component Custom Scripts Handler. This manipulation causes cross site scripting. Remote exploitation of the attack is possible. The explo…
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Low 3.5
WebSystems WebTOTUM Calendar cross site scripting
A vulnerability has been found in WebSystems WebTOTUM 2026. This impacts an unknown function of the component Calendar. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may …
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Low 2.4
erponline.xyz ERP Online Inventory Edit Item cross site scripting
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Low 3.5
Qibo CMS Internal Message cross site scripting
A vulnerability was found in Qibo CMS 1.0. Affected by this vulnerability is an unknown functionality of the component Internal Message Module. Performing a manipulation results in cross site scripting. The attack can be initiated remotely. The exploit has be…
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Low 3.5
Yifang CMS Extended Management L_rbac_admin.php store cross site scripting
A security flaw has been discovered in Yifang CMS up to 2.0.5. The impacted element is the function store of the file plugins/yifang_backend_account/logic/admin/L_rbac_admin.php of the component Extended Management Module. The manipulation of the argument Acc…
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Low 2.4
BichitroGan ISP Billing Software Pool List add cross site scripting
A weakness has been identified in BichitroGan ISP Billing Software 2025.3.20. Affected is an unknown function of the file /?\_route=pool/add of the component Pool List Interface. Executing a manipulation can lead to cross site scripting. The attack may be per…
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Low 2.4
BichitroGan ISP Billing Software Profile users-view cross site scripting
A security flaw has been discovered in BichitroGan ISP Billing Software 2025.3.20. This impacts an unknown function of the file /?_route=settings/users-view/ of the component Profile Page Handler. Performing a manipulation results in cross site scripting. The…
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Low 2.4
BichitroGan ISP Billing Software Customer edit cross site scripting
A vulnerability was identified in BichitroGan ISP Billing Software 2025.3.20. This affects an unknown function of the file /?\_route=customers/edit/ of the component Customer Handler. Such manipulation leads to cross site scripting. The attack can be executed…
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Low 3.5
langgenius dify ImagePreview image-preview.tsx openInNewTab cross site scripting
A vulnerability has been found in langgenius dify up to 1.13.3. Impacted is the function openInNewTab of the file web/app/components/base/image-uploader/image-preview.tsx of the component ImagePreview. The manipulation of the argument filename leads to cross …
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Low 3.5
langflow-ai langflow Frontend React Component Rendering edit-message.tsx cross site scripting
A flaw has been found in langflow-ai langflow up to 1.8.3. This affects an unknown function of the file src/frontend/src/modals/IOModal/components/chatView/chatMessage/components/edit-message.tsx of the component Frontend React Component Rendering. Executing …
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Low 3.5
ComfyUI View Endpoint server.py cross site scripting
A vulnerability was found in ComfyUI up to 0.13.0. Affected by this issue is some unknown functionality of the file server.py of the component View Endpoint. Performing a manipulation results in cross site scripting. The attack is possible to be carried out r…
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Low 3.5
ComfyUI userdata Endpoint user_manager.py getuserdata cross site scripting
A vulnerability has been found in ComfyUI up to 0.13.0. Affected by this vulnerability is the function getuserdata of the file app/user_manager.py of the component userdata Endpoint. Such manipulation leads to cross site scripting. The attack can be executed …
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Low 3.5
lukevella rallly Reset Password reset-password-form.tsx cross site scripting
A flaw has been found in lukevella rallly up to 4.7.4. This affects an unknown function of the file apps/web/src/app/[locale]/(auth)/reset-password/components/reset-password-form.tsx of the component Reset Password Handler. Executing a manipulation of the arg…
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Low 3.5
classroombookings User Display Name layout.php read cross site scripting
A vulnerability was detected in classroombookings up to 2.17.0. This impacts the function read of the file crbs-core/application/views/layout.php of the component User Display Name Handler. The manipulation of the argument displayname results in cross site sc…
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Low 2.0
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Low 3.5
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Low 2.4CVE-2026-6184 Public exploit
code-projects Simple Content Management System welcome.php cross site scripting
A weakness has been identified in code-projects Simple Content Management System 1.0. This affects an unknown part of the file /web/admin/welcome.php. Executing a manipulation of the argument News Title can lead to cross site scripting. The attack can be exec…
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Low 3.5
1Panel-dev MaxKB MdPreview chat.ts cross site scripting
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Low 3.5
PHPGurukul Company Visitor Management System bwdates-reports-details.php cross site scripting
A vulnerability has been found in PHPGurukul Company Visitor Management System 2.0. This impacts an unknown function of the file /bwdates-reports-details.php. The manipulation of the argument fromdate leads to cross site scripting. The attack is possible to b…
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Low 3.5
1Panel-dev MaxKB ChatHeadersMiddleware chat_headers_middleware.py cross site scripting
A flaw has been found in 1Panel-dev MaxKB up to 2.6.1. This issue affects some unknown processing of the file apps/common/middleware/chat_headers_middleware.py of the component ChatHeadersMiddleware. This manipulation of the argument Name causes cross site sc…
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Low 3.5
1Panel-dev MaxKB Public Chat static_headers_middleware.py StaticHeadersMiddleware cross site scripting
A vulnerability was detected in 1Panel-dev MaxKB up to 2.2.1. This vulnerability affects the function StaticHeadersMiddleware of the file apps/common/middleware/static_headers_middleware.py of the component Public Chat Interface. The manipulation of the argum…
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Low 2.4
code-projects Simple IT Discussion Forum user.php cross site scripting
A security vulnerability has been detected in code-projects Simple IT Discussion Forum 1.0. This issue affects some unknown processing of the file /admin/user.php. Such manipulation of the argument fname leads to cross site scripting. The attack may be perfor…
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Low 2.4
code-projects Online Shoe Store admin_product.php cross site scripting
A vulnerability has been found in code-projects Online Shoe Store 1.0. Affected by this issue is some unknown functionality of the file /admin/admin_product.php. The manipulation of the argument product_name leads to cross site scripting. The attack can be in…
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Low 2.4
code-projects Online Shoe Store admin_football.php cross site scripting
A flaw has been found in code-projects Online Shoe Store 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/admin_football.php. Executing a manipulation of the argument product_name can lead to cross site scripting. It is possi…
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Low 2.4
code-projects Online Shoe Store admin_running.php cross site scripting
A vulnerability was detected in code-projects Online Shoe Store 1.0. Affected is an unknown function of the file /admin/admin_running.php. Performing a manipulation of the argument product_name results in cross site scripting. It is possible to initiate the a…
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Low 3.5
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Low 3.5
code-projects Easy Blog Site update.php cross site scripting
A security vulnerability has been detected in code-projects Easy Blog Site 1.0. This affects an unknown function of the file /posts/update.php. The manipulation of the argument postTitle leads to cross site scripting. The attack may be initiated remotely. The…
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Low 2.4
Cyber-III Student-Management-System add%20notice.php cross site scripting
A flaw has been found in Cyber-III Student-Management-System up to 1a938fa61e9f735078e9b291d2e6215b4942af3f. This affects an unknown part of the file /admin/Add%20notice/add%20notice.php. This manipulation of the argument $_SERVER['PHP_SELF'] causes cross sit…
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Low 2.4
code-projects Online Shoe Store Add Product admin_feature.php cross site scripting
A vulnerability was detected in code-projects Online Shoe Store 1.0. This affects an unknown part of the file /admin/admin_feature.php of the component Add Product Page. The manipulation of the argument product_name results in cross site scripting. The attack…
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Low 2.4
Cyber-III Student-Management-System batch-notice.php cross site scripting
A security flaw has been discovered in Cyber-III Student-Management-System up to 1a938fa61e9f735078e9b291d2e6215b4942af3f. Affected is an unknown function of the file /admin/Add%20notice/batch-notice.php. Performing a manipulation of the argument $_SERVER['PH…