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 3.5
itsourcecode Leave Management System Query Parameter controller.php redirect cross site scripting
A security flaw has been discovered in itsourcecode Leave Management System 1.0. This impacts the function redirect of the file /module/employee/controller.php?action=reset of the component Query Parameter Handler. Performing a manipulation of the argument ID…
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Low 2.4
projectworlds Advanced Library Management System edit_admin.php cross site scripting
A vulnerability was identified in projectworlds Advanced Library Management System 1.0. Affected is an unknown function of the file /edit_admin.php. The manipulation of the argument firstname leads to cross site scripting. It is possible to initiate the attac…
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Low 3.5
code-projects Voting System candidates_edit.php cross site scripting
A flaw has been found in code-projects Voting System 1.0. The affected element is an unknown function of the file /admin/candidates_edit.php. This manipulation of the argument Firstname/Lastname/Platform causes cross site scripting. Remote exploitation of the…
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Low 2.4
langleyfcu Online Banking System Add Customer customer_add_action.php cross site scripting
A vulnerability was identified in langleyfcu Online Banking System up to 57437e6400ce0ae240e692c24e6346b8d0c17d7a. This impacts an unknown function of the file /customer_add_action.php of the component Add Customer Page. The manipulation of the argument First…
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Low 3.5
CmsEasy URL view.php cross site scripting
A vulnerability was determined in CmsEasy up to 7.7.7. This affects an unknown function in the library lib/inc/view.php of the component URL Handler. Executing a manipulation of the argument PHP_SELF can lead to cross site scripting. The attack may be launche…
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Low 3.5
Vanderlande Baggage 360 messages cross site scripting
A vulnerability was identified in Vanderlande Baggage 360 7.0.0. This issue affects some unknown processing of the file /api-addons/v1/messages. Such manipulation of the argument Message leads to cross site scripting. The attack may be performed from remote. …
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Low 2.4
westboy CicadasCMS Template Management TemplateFileServiceImpl.java save cross site scripting
A vulnerability was determined in westboy CicadasCMS up to 2431154dac8d0735e04f1fd2a3c3556668fc8dab. The impacted element is the function Save of the file src/main/java/com/zhiliao/common/template/TemplateFileServiceImpl.java of the component Template Managem…
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Low 2.4
Frappe LMS Course cross site scripting
A vulnerability was determined in Frappe LMS 2.35.0. This affects an unknown function of the component Course Handler. Executing manipulation of the argument Description can lead to cross site scripting. The attack can be executed remotely. The exploit has be…
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Low 2.4
Frappe LMS Incomplete Fix CVE-2025-55006 cross site scripting
A vulnerability was found in Frappe LMS 2.34.x/2.35.0. The impacted element is an unknown function of the component Incomplete Fix CVE-2025-55006. Performing a manipulation results in cross site scripting. Remote exploitation of the attack is possible. The ex…
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Low 3.5
Rebuild Comment/Guestbook cross site scripting
A security flaw has been discovered in Rebuild up to 4.1.3. Affected by this issue is some unknown functionality of the component Comment/Guestbook. Performing manipulation results in cross site scripting. It is possible to initiate the attack remotely. Upgra…
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Low 3.5
Gstarsoft GstarCAD File Renaming cross site scripting
A vulnerability has been found in Gstarsoft GstarCAD up to 9.4.0. This affects an unknown function of the component File Renaming Handler. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to …
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Low 2.4
Cudy TR1200 Wireless Settings config cross site scripting
A security vulnerability has been detected in Cudy TR1200 1.16.3-20230804-164635. Impacted is an unknown function of the file /cgi-bin/luci/admin/network/wireless/config/ of the component Wireless Settings Page. Such manipulation of the argument SSID leads to…
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Low 3.5
code-projects Project Monitoring System postjob.php cross site scripting
A vulnerability has been found in code-projects Project Monitoring System 1.0. Affected is an unknown function of the file /onlineJobSearchEngine/postjob.php. Such manipulation of the argument txtapplyto leads to cross site scripting. The attack may be launch…
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Low 2.4
westboy CicadasCMS Add Department save cross site scripting
A vulnerability was determined in westboy CicadasCMS 1.0. Affected by this issue is some unknown functionality of the file /system/org/save of the component Add Department Handler. This manipulation of the argument Name causes cross site scripting. The attack…
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Low 2.4
westboy CicadasCMS save cross site scripting
A vulnerability was found in westboy CicadasCMS 1.0. Affected by this vulnerability is an unknown functionality of the file /system/cms/category/save. The manipulation of the argument categoryName results in cross site scripting. The attack can be executed re…
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Low 2.4
Projectworlds Visitor Management System Add Visitor myform.php cross site scripting
A vulnerability has been found in Projectworlds Visitor Management System 1.0. Affected is an unknown function of the file /myform.php of the component Add Visitor Page. The manipulation of the argument Name leads to cross site scripting. Remote exploitation …
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Low 2.4
givanz Vvveb SVG File cross site scripting
A vulnerability was identified in givanz Vvveb up to 1.0.7.2. Affected by this issue is some unknown functionality of the component SVG File Handler. Such manipulation leads to cross site scripting. The attack may be launched remotely. The exploit is publicly…
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Low 2.4
Total.js CMS Files Menu cross site scripting
A vulnerability has been found in Total.js CMS up to 19.9.0. This impacts an unknown function of the component Files Menu. The manipulation leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and m…
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Low 2.4
Changsha Developer Technology iView Editor Markdown cross site scripting
A vulnerability was found in Changsha Developer Technology iView Editor up to 1.1.1. This impacts an unknown function of the component Markdown Handler. The manipulation results in cross site scripting. The attack may be performed from remote. The exploit has…
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Low 3.5
nuz007 smsboom dy.php cross site scripting
A vulnerability was detected in nuz007 smsboom up to 01b2f35bbbc23f3e0f60f38ca0e3d1b286f8d674. The affected element is an unknown function of the file dy.php. Performing manipulation of the argument hm results in cross site scripting. Remote exploitation of t…
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Low 3.5
nuz007 smsboom d.php cross site scripting
A security vulnerability has been detected in nuz007 smsboom up to 01b2f35bbbc23f3e0f60f38ca0e3d1b286f8d674. Impacted is an unknown function of the file d.php. Such manipulation of the argument hm leads to cross site scripting. The attack may be launched remo…
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Low 3.5
yi-ge get-header-ip ip.php cross site scripting
A weakness has been identified in yi-ge get-header-ip up to 589b23d0eb0043c310a6a13ce4bbe2505d0d0b15. This issue affects the function ip of the file ip.php. This manipulation of the argument callback causes cross site scripting. The attack may be initiated re…
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Low 3.5
MikeCen WeChat-Face-Recognition wx.php valid cross site scripting
A security flaw has been discovered in MikeCen WeChat-Face-Recognition up to 6e3f72bf8547d80b59e330f1137e4aa505f492c1. This vulnerability affects the function valid of the file wx.php. The manipulation of the argument echostr results in cross site scripting. …
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Low 2.4
Total.js CMS Layout admin layouts_save cross site scripting
A vulnerability was found in Total.js CMS 1.0.0. Affected by this vulnerability is the function layouts_save of the file /admin/ of the component Layout Page. Performing manipulation of the argument HTML results in cross site scripting. It is possible to init…
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Low 2.4
Mangati NovoSGA SVG File admin cross site scripting
A security flaw has been discovered in Mangati NovoSGA up to 2.2.9. The impacted element is an unknown function of the file /admin of the component SVG File Handler. Performing manipulation of the argument logoNavbar/logoLogin results in cross site scripting.…
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Low 3.5
code-projects Simple Food Ordering System order.php cross site scripting
A security vulnerability has been detected in code-projects Simple Food Ordering System 1.0. Affected by this vulnerability is an unknown functionality of the file /ordersimple/order.php. The manipulation of the argument ID leads to cross site scripting. The …
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Low 2.4
htmly Custom Field post cross site scripting
A security vulnerability has been detected in htmly up to 3.1.0. The impacted element is an unknown function of the file /htmly/admin/field/post of the component Custom Field Handler. Such manipulation of the argument label leads to cross site scripting. The …
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Low 3.5
wangchenyi1996 chat_forum q.php cross site scripting
A vulnerability has been found in wangchenyi1996 chat_forum up to 80bdb92f5b460d36cab36e530a2c618acef5afd2. This impacts an unknown function of the file /q.php. Such manipulation of the argument path leads to cross site scripting. The attack may be launched r…
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Low 3.5
itsourcecode Online Petshop Management System Admin Dashboard availableframe.php cross site scripting
A security flaw has been discovered in itsourcecode Online Petshop Management System 1.0. The affected element is an unknown function of the file availableframe.php of the component Admin Dashboard. The manipulation of the argument name/address results in cro…
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Low 3.5
itsourcecode Online Petshop Management System Available Products addcnp.php cross site scripting
A vulnerability was identified in itsourcecode Online Petshop Management System 1.0. Impacted is an unknown function of the file addcnp.php of the component Available Products Page. The manipulation of the argument name/description leads to cross site scripti…
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Low 3.5
Portabilis i-Educar Editar Função educar_funcao_cad.php cross site scripting
A weakness has been identified in Portabilis i-Educar up to 2.10. This affects an unknown function of the file /intranet/educar_funcao_cad.php of the component Editar Função Page. This manipulation of the argument abreviatura/tipoacao causes cross site script…
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Low 3.5
Portabilis i-Educar educar_calendario_anotacao_cad.php cross site scripting
A vulnerability was identified in Portabilis i-Educar up to 2.10. Impacted is an unknown function of the file /intranet/educar_calendario_anotacao_cad.php. Such manipulation of the argument nm_anotacao/descricao leads to cross site scripting. It is possible t…
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Low 2.4
IbuyuCMS Add Article article.php cross site scripting
A vulnerability was identified in IbuyuCMS up to 2.6.3. Impacted is an unknown function of the file /admin/article.php?a=mod of the component Add Article Page. The manipulation of the argument Title leads to cross site scripting. The attack is possible to be …
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Low 3.5
Selleo Mentingo Create New Course Basic Settings enroll-course cross site scripting
A vulnerability was identified in Selleo Mentingo 2025.08.27. This issue affects some unknown processing of the file /api/course/enroll-course of the component Create New Course Basic Settings. Such manipulation of the argument Description leads to cross site…
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Low 3.5
Portabilis i-Educar educar_turma_tipo_cad.php cross site scripting
A security vulnerability has been detected in Portabilis i-Educar up to 2.10. The affected element is an unknown function of the file /intranet/educar_turma_tipo_cad.php. Such manipulation of the argument nm_tipo leads to cross site scripting. It is possible …
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Low 3.5
Portabilis i-Educar educar_modulo_cad.php cross site scripting
A weakness has been identified in Portabilis i-Educar up to 2.10. Impacted is an unknown function of the file /intranet/educar_modulo_cad.php. This manipulation of the argument nm_tipo/descricao causes cross site scripting. It is possible to initiate the atta…
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Low 3.5CVE-2025-10370 Public exploit
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A vulnerability was identified in MiczFlor RPi-Jukebox-RFID up to 2.8.0. This vulnerability affects unknown code of the file /htdocs/userScripts.php. The manipulation of the argument Custom script leads to cross site scripting. The attack is possible to be ca…
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Low 3.5
MiczFlor RPi-Jukebox-RFID cardRegisterNew.php cross site scripting
A vulnerability was determined in MiczFlor RPi-Jukebox-RFID up to 2.8.0. This affects an unknown part of the file /htdocs/cardRegisterNew.php. Executing manipulation can lead to cross site scripting. The attack can be executed remotely. The exploit has been p…
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Low 3.5
MiczFlor RPi-Jukebox-RFID manageFilesFolders.php cross site scripting
A vulnerability was found in MiczFlor RPi-Jukebox-RFID up to 2.8.0. Affected by this issue is some unknown functionality of the file /htdocs/manageFilesFolders.php. Performing manipulation results in cross site scripting. Remote exploitation of the attack is …
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Low 3.5
MiczFlor RPi-Jukebox-RFID cardEdit.php cross site scripting
A vulnerability has been found in MiczFlor RPi-Jukebox-RFID up to 2.8.0. Affected by this vulnerability is an unknown functionality of the file /htdocs/cardEdit.php. Such manipulation leads to cross site scripting. The attack may be launched remotely. The exp…