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
1,025 results · Clear filters · Feed
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Medium 5.6CVE-2026-7669 Public exploit
sgl-project SGLang HuggingFace Transformer hf_transformers_utils.py get_tokenizer code injection
A vulnerability was detected in sgl-project SGLang up to 0.5.9. Impacted is the function get_tokenizer of the file python/sglang/srt/utils/hf_transformers_utils.py of the component HuggingFace Transformer Handler. The manipulation of the argument trust_remote…
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Medium 4.3
nextlevelbuilder ui-ux-pro-max-skill Slide Generator generate-slide.py data.get cross site scripting
A vulnerability has been found in nextlevelbuilder ui-ux-pro-max-skill up to 2.5.0. Affected by this issue is the function data.get of the file .claude/skills/design-system/scripts/generate-slide.py of the component Slide Generator. Such manipulation leads to…
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Medium 6.3
nextlevelbuilder ui-ux-pro-max-skill Tailwind Config Generator tailwind_config_gen.py _format_plugins code injection
A flaw has been found in nextlevelbuilder ui-ux-pro-max-skill up to 2.5.0. Affected by this vulnerability is the function _format_plugins of the file .claude/skills/ui-styling/scripts/tailwind_config_gen.py of the component Tailwind Config Generator. This man…
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Medium 5.3
Exiftool JPEG/QuickTime/MOV/MP4 GM.pm Process_mrld code injection
A vulnerability was detected in Exiftool up to 13.53. Impacted is the function Process_mrld of the file lib/Image/ExifTool/GM.pm of the component JPEG/QuickTime/MOV/MP4. The manipulation of the argument -ee results in code injection. Attacking locally is a re…
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Medium 6.3
Bootstrap CMS Page Creation show.blade.php code injection
A vulnerability was found in Bootstrap CMS 0.9.0-alpha. Affected is an unknown function of the file resources/views/pages/show.blade.php of the component Page Creation Handler. Performing a manipulation of the argument body results in code injection. Remote e…
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Medium 4.3CVE-2026-7401 Public exploit
SourceCodester CET Automated Grading System with AI Predictive Analytics Registration index.php register cross site scripting
A vulnerability was detected in SourceCodester CET Automated Grading System with AI Predictive Analytics 1.0. This vulnerability affects unknown code of the file /index.php?action=register of the component Registration. The manipulation of the argument studen…
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Medium 4.7
EyouCMS Template File FilemanagerLogic.php editFile code injection
A weakness has been identified in EyouCMS up to 1.7.9. Impacted is the function editFile of the file application/admin/logic/FilemanagerLogic.php of the component Template File Handler. Executing a manipulation can lead to code injection. The attack can be la…
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Medium 4.3
SourceCodester Safety Anger Pad cross site scripting
A vulnerability was found in SourceCodester Safety Anger Pad 1.0. The affected element is an unknown function. The manipulation of the argument angerDisplay results in cross site scripting. The attack may be performed from remote. The exploit has been made pu…
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Medium 4.3
SourceCodester Pharmacy Sales and Inventory System index.php cross site scripting
A flaw has been found in SourceCodester Pharmacy Sales and Inventory System 1.0. Affected by this issue is some unknown functionality of the file /index.php?page=types. Executing a manipulation of the argument ID can lead to cross site scripting. It is possib…
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Medium 4.3
SourceCodester Pharmacy Sales and Inventory System index.php cross site scripting
A vulnerability was detected in SourceCodester Pharmacy Sales and Inventory System 1.0. Impacted is an unknown function of the file /index.php?page=categories. Performing a manipulation of the argument ID results in cross site scripting. The attack is possibl…
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Medium 4.3
code-projects Employee Management System mark.php cross site scripting
A security flaw has been discovered in code-projects Employee Management System 1.0. This issue affects some unknown processing of the file 370project/mark.php. Performing a manipulation results in cross site scripting. Remote exploitation of the attack is po…
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Medium 4.3
code-projects Employee Management System edit.php cross site scripting
A vulnerability was identified in code-projects Employee Management System 1.0. This affects an unknown part of the file 370project/edit.php. The manipulation of the argument ID leads to cross site scripting. It is possible to initiate the attack remotely. Th…
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Medium 4.3CVE-2026-7089 Public exploit
code-projects Home Service System Appointment Booking booking.php cross site scripting
A security vulnerability has been detected in code-projects Home Service System 1.0. The impacted element is an unknown function of the file /booking.php of the component Appointment Booking. The manipulation of the argument fname/lname leads to cross site sc…
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Medium 4.5
D-Link DGS-3420 System Information Settings cross site scripting
A vulnerability was determined in D-Link DGS-3420 1.50.018. This issue affects some unknown processing of the component System Information Settings Page. This manipulation of the argument System Name causes cross site scripting. Remote exploitation of the att…
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Medium 5.9
Remote Code Execution in h2oai/h2o-3
A critical remote code execution vulnerability exists in the unauthenticated REST API endpoint /99/ImportSQLTable in H2O-3 version 3.46.0.9 and prior. The vulnerability arises due to insufficient security controls in the parameter blacklist mechanism, which o…
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Medium 6.4
ntfy.sh allows a remote attacker to execute arbitrary code via the parseActions function
ntfy before 2.22.0 allows SSRF because of an unanchored regular expression for web push endpoint URLs.
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Medium 5.6
hass-cli: Handling of user-supplied Jinja2 templates
The Home Assistant Command-line interface (hass-cli) is a command-line tool for Home Assistant. Up to 1.0.0 of home-assitant-cli an unrestricted environment was used to handle Jninja2 templates instead of a sandboxed one. The user-supplied input within Jinja2…
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Medium 4.7
Pagekit CMS StringStorage Template PhpEngine.php evaluate eval injection
A weakness has been identified in Pagekit CMS up to 1.0.18. This issue affects the function evaluate of the file app/modules/view/src/PhpEngine.php of the component StringStorage Template Handler. This manipulation causes improper neutralization of directives…
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Medium 4.0
Nuclei: Environment variable disclosure via Response-Derived DSL Expressions
ProjectDiscovery Nuclei 3 before 3.8.0 allows DSL expression injection. This affects use of -env-vars for multi-step templates against untrusted targets (not the default configuration).
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Medium 4.3
Wavlink WL-WN579A3 login.cgi sub_401F80 cross site scripting
A weakness has been identified in Wavlink WL-WN579A3 220323. This affects the function sub_401F80 of the file /cgi-bin/login.cgi. This manipulation of the argument Hostname causes cross site scripting. Remote exploitation of the attack is possible. Upgrading …
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Medium 5.4
Avada (Fusion) Builder <= 3.15.1 - Authenticated (Subscriber+) Limited Arbitrary WordPress Action Execution
The Avada (Fusion) Builder plugin for WordPress is vulnerable to Arbitrary WordPress Action Execution in all versions up to, and including, 3.15.1. This is due to the plugin's `output_action_hook()` function accepting user-controlled input to trigger any regi…
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Medium 4.0
PowerShell Command Injection in Podman HyperV Machine
Podman is a tool for managing OCI containers and pods. Versions 4.8.0 through 5.8.1 contain a command injection vulnerability in the HyperV machine backend in pkg/machine/hyperv/stubber.go, where the VM image path is inserted into a PowerShell double-quoted s…
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Medium 4.9
October CMS: Environment Variable Exfiltration via INI Parser Interpolation
October is a Content Management System (CMS) and web platform. Versions prior to 3.7.14 and 4.1.10 contain a server-side information disclosure vulnerability in the INI settings parser. Because PHP's parse_ini_string() function supports ${} syntax for environ…
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Medium 6.5
Germanized for WooCommerce <= 3.20.5 - Unauthenticated Arbitrary Shortcode Execution
The The Germanized for WooCommerce plugin for WordPress is vulnerable to arbitrary shortcode execution via 'account_holder' parameter in all versions up to, and including, 3.20.5. This is due to the software allowing users to execute an action that does not p…
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Medium 6.3
MaxKB: Sandbox escape via ctypes and unhooked SYS_pkey_mprotect
MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a sandbox escape vulnerability in the ToolExecutor component. By leveraging Python's ctypes library to execute raw system calls, an authenticated attacker with workspace pri…
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Medium 6.1
Code Injection vulnerability in SAP NetWeaver Application Server Java (Web Dynpro Java)
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Medium 4.3
aandrew-me ytDownloader Error Details Panel createTextNode cross site scripting
A vulnerability was found in aandrew-me ytDownloader up to 3.20.2. Affected by this issue is the function createTextNode of the component Error Details Panel. The manipulation results in cross site scripting. The attack may be performed from remote. The vendo…
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Medium 4.3
code-projects Simple ChatBox Endpoint insert.php cross site scripting
A vulnerability has been found in code-projects Simple ChatBox up to 1.0. Affected by this vulnerability is an unknown functionality of the file /chatbox/insert.php of the component Endpoint. Such manipulation of the argument msg leads to cross site scripting…
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Medium 4.3
code-projects Simple Laundry System checkupdatestatus.php cross site scripting
A vulnerability has been found in code-projects Simple Laundry System 1.0. This affects an unknown part of the file /checkupdatestatus.php. The manipulation of the argument serviceId leads to cross site scripting. It is possible to initiate the attack remotel…
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Medium 6.3
Dromara warm-flow Workflow Definition save-json SpelHelper.parseExpression code injection
A security flaw has been discovered in Dromara warm-flow up to 1.8.4. Impacted is the function SpelHelper.parseExpression of the file /warm-flow/save-json of the component Workflow Definition Handler. The manipulation of the argument listenerPath/skipConditio…
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Medium 4.3
code-projects Vehicle Showroom Management System ServiceAndSalesReport.php cross site scripting
A vulnerability has been found in code-projects Vehicle Showroom Management System 1.0. The affected element is an unknown function of the file /BranchManagement/ServiceAndSalesReport.php. The manipulation of the argument BRANCH_ID leads to cross site scripti…
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Medium 4.3
code-projects Vehicle Showroom Management System ProfitAndLossReport.php cross site scripting
A flaw has been found in code-projects Vehicle Showroom Management System 1.0. Impacted is an unknown function of the file /BranchManagement/ProfitAndLossReport.php. Executing a manipulation of the argument BRANCH_ID can lead to cross site scripting. The atta…
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Medium 4.3
code-projects Simple Laundry System checkcheckout.php cross site scripting
A vulnerability was found in code-projects Simple Laundry System 1.0. This impacts an unknown function of the file /checkcheckout.php. Performing a manipulation of the argument serviceId results in cross site scripting. The attack is possible to be carried ou…
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Medium 4.7
jeecgboot JimuReport Data Source testConnection DriverManager.getConnection code injection
A vulnerability was found in jeecgboot JimuReport up to 2.3.0. The affected element is the function DriverManager.getConnection of the file /drag/onlDragDataSource/testConnection of the component Data Source Handler. Performing a manipulation of the argument …
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Medium 4.3
code-projects Simple IT Discussion Forum edit-category.php cross site scripting
A flaw has been found in code-projects Simple IT Discussion Forum 1.0. This issue affects some unknown processing of the file /edit-category.php. Executing a manipulation of the argument Category can lead to cross site scripting. The attack can be launched re…
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Medium 4.3
code-projects Simple Laundry System delmemberinfo.php cross site scripting
A vulnerability was detected in code-projects Simple Laundry System 1.0. This vulnerability affects unknown code of the file /delmemberinfo.php. Performing a manipulation of the argument userid results in cross site scripting. The attack can be initiated remo…
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Medium 5.7
Improper Control of Generation of Code ('Code Injection') in GitLab
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Medium 4.3
openstatusHQ openstatus Onboarding Endpoint client.tsx cross site scripting
A vulnerability was detected in openstatusHQ openstatus up to 1b678e71a85961ae319cbb214a8eae634059330c. This impacts an unknown function of the file apps/dashboard/src/app/(dashboard)/onboarding/client.tsx of the component Onboarding Endpoint. The manipulatio…
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Medium 5.0
Vim Ex command injection in Vims NetBeans integration
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Medium 6.1
yaffa vulnerable to Cross Site Scripting
yaffa v2.0.0 is vulnerable to Cross Site Scripting (XSS). An attacker can inject malicious JavaScript into the "Add Account Group" function on the account-group page, allowing execution of arbitrary script in the context of users who view the affected page.