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
5,297 results · Feed
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Medium 4.3
SourceCodester/Patrick Mvuma Patients Waiting Area Queue Management System checkin.php cross site scripting
A flaw has been found in SourceCodester/Patrick Mvuma Patients Waiting Area Queue Management System 1.0. Affected by this issue is some unknown functionality of the file /checkin.php. This manipulation of the argument patient_id causes cross site scripting. T…
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Medium 4.3
SourceCodester/Patrick Mvuma Patients Waiting Area Queue Management System appointments.php cross site scripting
A vulnerability was detected in SourceCodester/Patrick Mvuma Patients Waiting Area Queue Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /appointments.php. The manipulation of the argument patient_id results in cr…
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Low 3.5
cym1102 nginxWebUI Web Management check cross site scripting
A vulnerability was identified in cym1102 nginxWebUI up to 4.3.7. The impacted element is an unknown function of the file /adminPage/conf/check of the component Web Management Interface. Such manipulation of the argument nginxDir leads to cross site scripting…
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High 8.2
calibre has a Path Traversal Leading to Arbitrary File Corruption and Code Execution
calibre is an e-book manager. In 9.1.0 and earlier, a path traversal vulnerability in Calibre's EPUB conversion allows a malicious EPUB file to corrupt arbitrary existing files writable by the Calibre process. During conversion, Calibre resolves CipherReferen…
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Critical 10.0
SandboxJS has a Sandbox Escape
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.29, as Map is in SAFE_PROTOYPES, it's prototype can be obtained via Map.prototype. By overwriting Map.prototype.has the sandbox can be escaped. This vulnerability is fixed in 0.8.29.
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Low 3.5
Portabilis i-Educar User Data meusdadod.php cross site scripting
A vulnerability was identified in Portabilis i-Educar up to 2.10. Affected by this vulnerability is an unknown functionality of the file /intranet/meusdadod.php of the component User Data Page. Such manipulation of the argument File leads to cross site script…
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Medium 6.3
abhiphile fermat-mcp eqn_chart.py eqn_chart code injection
A vulnerability was detected in abhiphile fermat-mcp up to 47f11def1cd37e45dd060f30cdce346cbdbd6f0a. This vulnerability affects the function eqn_chart of the file fmcp/mpl_mcp/core/eqn_chart.py. Performing a manipulation of the argument equations results in c…
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Medium 6.3
isaacwasserman mcp-vegalite-server visualize_data eval code injection
A security vulnerability has been detected in isaacwasserman mcp-vegalite-server up to 16aefed598b8cd897b78e99b907f6e2984572c61. Affected by this vulnerability is the function eval of the component visualize_data. Such manipulation of the argument vegalite_sp…
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Low 2.4
Edimax BR-6288ACL wiz_WISP24gmanual.asp wiz_WISP24gmanual cross site scripting
A vulnerability has been found in Edimax BR-6288ACL up to 1.12. Impacted is the function wiz_WISP24gmanual of the file wiz_WISP24gmanual.asp. Such manipulation of the argument manualssid leads to cross site scripting. The attack can be launched remotely. The …
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High 8.6
Potential code smuggling via doc comments in cmd/cgo
A discrepancy between how Go and C/C++ comments were parsed allowed for code smuggling into the resulting cgo binary.
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High 7.2
An issue in ChestnutCMS v.1.5.8 and before allows a remote attacker to execute arbitrary code via the template creation…
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Critical 9.4
Langroid has WAF Bypass Leading to RCE in TableChatAgent
Langroid is a framework for building large-language-model-powered applications. Prior to version 0.59.32, there is a bypass to the fix for CVE-2025-46724. TableChatAgent can call pandas_eval tool to evaluate the expression. There is a WAF in langroid/utils/pa…
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Critical 10.0
CI4MS Vulnerable to Remote Code Execution (RCE) via Arbitrary File Creation and Save in File Editor
CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.28.5.0, an authenticated user with file editor permissions can achieve Remote Code Execution (RCE)…
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High 7.7
Claude Code has a Command Injection in find Command Bypasses User Approval Prompt
Claude Code is an agentic coding tool. Prior to version 2.0.72, due to an error in command parsing, it was possible to bypass the Claude Code confirmation prompt to trigger execution of untrusted commands through the find command. Reliably exploiting this req…
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High 7.8
NVIDIA Megatron-LM for all platforms contains a vulnerability in a script, where malicious data created by an attacker …
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High 8.2
FUXA allows Remote Code Execution (RCE) via the project import functionality.
FUXA v1.2.7 allows Remote Code Execution (RCE) via the project import functionality. The application does not properly sanitize or sandbox user-supplied scripts within imported project files. An attacker can upload a malicious project containing system comman…
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Critical 10.0
SandboxJS Prototype Pollution -> Sandbox Escape -> RCE
SandboxJS is a JavaScript sandboxing library. Prior to 0.8.27, SanboxJS does not properly restrict __lookupGetter__ which can be used to obtain prototypes, which can be used for escaping the sandbox / remote code execution. This vulnerability is fixed in 0.8.…
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Low 2.4
D-Link DSL-6641K sp_pppoe_user.js doSubmitPPP cross site scripting
A vulnerability was found in D-Link DSL-6641K N8.TR069.20131126. Affected by this issue is the function doSubmitPPP of the file sp_pppoe_user.js. The manipulation of the argument Username results in cross site scripting. The attack may be launched remotely. T…
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Critical 9.8
AirControl 1.4.2 - PreAuth Remote Code Execution
AirControl 1.4.2 contains a pre-authentication remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary system commands through malicious Java expression injection. Attackers can exploit the /.seam endpoint by crafting a …
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Low 2.4
D-Link DSL-6641K Web ad_virtual_server_vdsl cross site scripting
A vulnerability was detected in D-Link DSL-6641K N8.TR069.20131126. Affected by this issue is the function ad_virtual_server_vdsl of the component Web Interface. Performing a manipulation of the argument Name results in cross site scripting. It is possible to…
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High 7.7
@backstage/plugin-techdocs-node vulnerable to arbitrary code execution via MkDocs hooks
Backstage is an open framework for building developer portals, and @backstage/plugin-techdocs-node provides common node.js functionalities for TechDocs. In versions of @backstage/plugin-techdocs-node prior to 1.13.11 and 1.14.1, when TechDocs is configured wi…
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Critical 9.3
Orval has a code injection via unsanitized x-enum-descriptions uing JS comments
Orval generates type-safe JS clients (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification. Versions starting with 7.19.0 and prior to 7.21.0 and 8.2.0 have an incomplete fix for CVE-2026-23947. While the jsStringEscape function properly handles …
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Critical 9.2CVE-2025-24293 Public exploit
Active Storage allowed transformation methods that were potentially unsafe
# Active Storage allowed transformation methods potentially unsafe Active Storage attempts to prevent the use of potentially unsafe image transformation methods and parameters by default. The default allowed list contains three methods allow for the circumven…
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High 7.8
Salt junos module uses an unsafe YAML loader which may allow unintended code execution
Salt's junos execution module contained an unsafe YAML decode/load usage. A specially crafted YAML payload processed by the junos module could lead to unintended code execution under the context of the Salt process.
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Low 3.5
projectworlds House Rental and Property Listing sms.php cross site scripting
A weakness has been identified in projectworlds House Rental and Property Listing 1.0. This vulnerability affects unknown code of the file /app/sms.php. This manipulation of the argument Message causes cross site scripting. It is possible to initiate the atta…
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Critical 9.8
A code injection in Ivanti Endpoint Manager Mobile allowing attackers to achieve unauthenticated remote code execution.
KEV Apr 8, 2026 -
Critical 9.8
A code injection in Ivanti Endpoint Manager Mobile allowing attackers to achieve unauthenticated remote code execution.
KEV Jan 29, 2026 -
High 8.6
AutoGPT is Vulnerable to RCE via Disabled Block Execution
AutoGPT is a platform that allows users to create, deploy, and manage continuous artificial intelligence agents that automate complex workflows. Prior to autogpt-platform-beta-v0.6.44, AutoGPT Platform's block execution endpoints (both main web API and extern…
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Low 3.5
Bdtask Bhojon All-In-One Restaurant Management System User Information profile cross site scripting
A vulnerability was found in Bdtask Bhojon All-In-One Restaurant Management System up to 20260116. Impacted is an unknown function of the file /dashboard/home/profile of the component User Information Module. Performing a manipulation of the argument fullname…
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Critical 10.0CVE-2026-24897 Public exploit
Authenticated Remote Code Execution via Arbitrary File Upload
Erugo is a self-hosted file-sharing platform. In versions up to and including 0.2.14, an authenticated low-privileged user can upload arbitrary files to any specified location due to insufficient validation of user‑supplied paths when creating shares. By spec…
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Low 2.4
rethinkdb Secondary Index cross site scripting
A vulnerability was identified in rethinkdb up to 2.4.3. Affected by this issue is some unknown functionality of the component Secondary Index Handler. Such manipulation leads to cross site scripting. It is possible to launch the attack remotely. The exploit …
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High 8.8
An HTML injection vulnerability in Amidaware Inc Tactical RMM v1.3.1 and earlier allows authenticated users to inject a…
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High 7.8
BrowserStack Local vulnerable to Command Injection through logfile variable
The Node.js package browserstack-local 1.5.8 contains a command injection vulnerability. This occurs because the logfile variable is not properly sanitized in lib/Local.js.
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Critical 10.0CVE-2026-23830 Public exploit
SandboxJS has Sandbox Escape via Unprotected AsyncFunction Constructor
SandboxJS is a JavaScript sandboxing library. Versions prior to 0.8.26 have a sandbox escape vulnerability due to `AsyncFunction` not being isolated in `SandboxFunction`. The library attempts to sandbox code execution by replacing the global `Function` constr…
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High 8.8
PyTorch Vulnerable to Remote Code Execution via Untrusted Checkpoint Files
PyTorch is a Python package that provides tensor computation. Prior to version 2.10.0, a vulnerability in PyTorch's `weights_only` unpickler allows an attacker to craft a malicious checkpoint file (`.pth`) that, when loaded with `torch.load(..., weights_only=…
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Critical 10.0
Code injection in Minecraft-Rcon-Manage
Improper Control of Generation of Code ('Code Injection') vulnerability in pilgrimage233 Minecraft-Rcon-Manage.This issue affects Minecraft-Rcon-Manage: before 3.0.
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Medium 5.3
Buffer Write Security Vulnerability in liuyueyi/quick-media
Improper Control of Generation of Code ('Code Injection') vulnerability in liuyueyi quick-media (plugins/svg-plugin/batik-codec-fix/src/main/java/org/apache/batik/ext/awt/image/codec/png modules). This vulnerability is associated with program files PNGImageEn…
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Critical 9.8
code-projects Mobile Shop Management System 1.0 is vulnerable to SQL Injection in /ExAddNewUser.php via the Name, Addre…
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Low 2.4
iJason-Liu Books_Manager add_book_check.php cross site scripting
A vulnerability has been found in iJason-Liu Books_Manager up to 298ba736387ca37810466349af13a0fdf828e99c. This affects an unknown part of the file controllers/books_center/add_book_check.php. Such manipulation of the argument mark leads to cross site scripti…
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Critical 9.8
vm2 has a Sandbox Escape
vm2 is an open source vm/sandbox for Node.js. In vm2 prior to version 3.10.2, `Promise.prototype.then` `Promise.prototype.catch` callback sanitization can be bypassed. This allows attackers to escape the sandbox and run arbitrary code. In lib/setup-sandbox.js…