Brave Search

December 6, 2023 - By exploiting vulnerabilities, an attacker can inject harmful code, leading to severe consequences, such as unauthorized data access, financial fraud, or total system takeover. These vulnerabilities often occur when an application mishandles user input. For example, insecure use of functions like eval() in Python without proper validation can lead to code injection.

PortSwigger

portswigger.net › kb › issues › 00100f10_python-code-injection

Python code injection - PortSwigger

Python code injection · Twitter WhatsApp Facebook Reddit LinkedIn Email · Server-side code injection vulnerabilities arise when an application incorporates user-controllable data into a string that is dynamically evaluated by a code interpreter.

Videos

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Build SQL Injection Scanner with Python

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Preventing SQL Injection in Python - YouTube

May 28, 2024

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Mastering SQL Injection Prevention in Python

27:10

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SQL Injection with SQLmap and Python Library Privilege Escalation ...

May 23, 2022

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Dependency Injection Explained In One Minute // Python Tips - YouTube

April 27, 2022

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GitHub

github.com › sethsec › PyCodeInjection

GitHub - sethsec/PyCodeInjection: Automated Python Code Injection Tool · GitHub

Automated Python Code Injection Tool. Contribute to sethsec/PyCodeInjection development by creating an account on GitHub.

Starred by 87 users

Forked by 23 users

Languages Python 96.8% | HTML 2.1% | Shell 1.1%

Semgrep

semgrep.dev › write rules › secure coding › python › code injection in python

Code Injection in Python | Semgrep

A malicious actor can inject a malicious string to execute arbitrary Python code.

Semgrep

semgrep.dev › write rules › secure coding › python › command injection in python

Command Injection in Python | Semgrep

September 30, 2025 - The subprocess module allows you to start new processes, connect to their input/output/error pipes, and obtain their return codes. Methods such as Popen, run, call, check_call, check_output are intended for running commands provided as an argument ('args'). Allowing user input in a command that is passed as an argument to one of these methods can create an opportunity for a command injection vulnerability.

CodeQL

codeql.github.com › codeql-query-help › python › py-code-injection

Code injection — CodeQL query help documentation - GitHub

urlpatterns = [ # Route to code_execution url(r'^code-ex1$', code_execution_bad, name='code-execution-bad'), url(r'^code-ex2$', code_execution_good, name='code-execution-good') ] def code_execution(request): if request.method == 'POST': first_name = base64.decodestring(request.POST.get('first_name', '')) #BAD -- Allow user to define code to be run.

StackHawk

stackhawk.com › stackhawk, inc. › vulnerabilities and remediation › preventing command injection in python: a guide to security

Preventing Command Injection in Python: A Guide to Security

January 13, 2025 - So in this post we will get you familiar with command injection via concrete examples—more precisely, command injection in Python. Command injection sends malicious data into an application that can lead to grave damage when dynamically evaluated by the code interpreter.

Blogger

sethsec.blogspot.com › 2016 › 11 › exploiting-python-code-injection-in-web.html

Exploiting Python Code Injection in Web Applications

November 20, 2016 - A web application vulnerable to Python code injection allows you to send Python code though the application to the Python interpreter on the target server. If you can execute python, you can likely call operating system commands. If you can run operating system commands, you can read/write files that you have access to, and potentially even launch a remote interactive shell (e.g., nc, Metasploit, Empire).

eLearnSecurity

doyler.net › home › exploiting python code injection in web applications

Exploiting Python Code Injection in Web Applications

April 11, 2018 - I was looking into python code injection recently, and ran across SethSec’s blog post. This looked like a great example, and I wanted to run through it myself. First off, I downloaded the PyCodeInjection application and got it running locally. root@kali:~/Documents# ls root@kali:~/Documents# git clone https://github.com/sethsec/PyCodeInjection.git Cloning into 'PyCodeInjection'... remote: Counting objects: 67, done. remote: […]

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https://probely.com

probely.com › vulnerabilities › python-code-injection

Python code injection - Probely

A Python code injection vulnerability allows the attacker to execute arbitrary Python code into the application. In the worst-case scenario, the attacker will be able to fully administrate the server, which will enable him to extract sensitive ...

Armur

armur.ai › blogs › posts › code_injection_in_python

Code Injection in Python: Examples and Prevention | Armur

Understanding these concepts is crucial for developing secure Python applications. Code injection is a technique used by malicious actors to introduce unauthorized code into a vulnerable application.

DataCamp

datacamp.com › tutorial › python-dependency-injection

Python Dependency Injection: A Guide for Cleaner Code Design | DataCamp

July 24, 2025 - Dependency injection is based on something called the principle of Inversion of Control (IoC), which means that instead of a class creating and managing its dependencies, it receives them from an external source. This helps to focus on a single task and makes your code clean. Injecting dependencies in Python includes these common way,s although there are others:

SecureFlag

knowledge-base.secureflag.com › vulnerabilities › code_injection › os_command_injection_python.html

OS Command Injection in Python | SecureFlag Security Knowledge Base

August 5, 2025 - The following snippet contains a Flask web application written in Python that executes the nslookup command to resolve the host supplied by the user. @app.route("/dns") def page(): hostname = request.values.get(hostname) cmd = 'nslookup ' + hostname return subprocess.check_output(cmd, shell=True) Since the hostname is simply appended to the command and executed on a subshell with shell=True, an attacker could stack another command using ; in the file_path GET parameter to inject additional commands.

Learn Prompting

learnprompting.org › home › docs › prompt hacking › offensive measures › code injection

Code Injection: Hacking Tool-Augmented LLMs

Code injection is a sophisticated hacking technique that takes advantage of ChatGPT's ability to interpret Python code.

JFrog

jfrog.com › blog home › 23andme’s yamale python code injection, and properly sanitizing eval()

23andMe's Yamale Python code injection, and properly sanitizing eval()

September 1, 2022 - [x for x in (1).__class__.__base__.__subclasses__() if x.__name__ == 'catch_warnings'][0]()._module.__builtins__['print']([x for x in (1).__class__.__base__.__subclasses__() if x.__name__ == 'catch_warnings'][0]()._module.__builtins__['__import__']('os').system('cd /; python3 -m http.server')) There have been many writeups regarding this subject, but the short answer is – if you are passing completely unsanitized input to eval (regardless of builtins) then you are susceptible to arbitrary code injection.

Wisc

research.cs.wisc.edu › mist › SoftwareSecurityCourse › Chapters › 3_8_3-Code-Injections.pdf pdf

3_8_3-Code-Injections.pdf

https://research.cs.wisc.edu/mist/SoftwareSecurityCourse/Chapters/18-Code-Injections.pdf

Stack Overflow

stackoverflow.com › questions › 38416671 › python-injection-is-there-such-a-thing

Python Injection - is there such a thing? - Stack Overflow

Top answer

1 of 1

This depends entirely on what you do with the input from the webform. In normal use the form gets encoded as x-www-form-urlencoded or json -- Both formats which can be deserialized into a python dictionary completely safely. Of course, they could be deserialized in unsafe ways too -- Make sure that you use libraries that are dedicated to handling this properly (e.g. urlparse or json).

From there, whether the input is safe depends entirely on what the application does with it. (e.g. it is not safe if the application uses eval with input based on the decoded dict).

As for automated testing for this -- I don't know of any way to accomplish this, but these problems are generally pretty easy to mitigate by just following normal best-practices (don't eval code you don't trust, etc. etc.)

Information Security Newspaper

securitynewspaper.com › home › exploiting python code injection in web applications

Exploiting Python Code Injection in Web Applications

December 11, 2016 - Python code injection is a subset of server-side code injection, as this vulnerability can occur in many other languages (e.g., Perl and Ruby).

Medium

medium.com › swlh › hacking-python-applications-5d4cd541b3f1

Hacking Python Applications. And how attackers exploit common… | by Vickie Li | The Startup | Medium

November 15, 2019 - Dangerous functions in Python like eval(), exec() and input() can be used to achieve authentication bypass and even code injection.

Andrea Fortuna

andreafortuna.org › 2018 › 08 › 20 › pycodeinjector-a-simple-python-code-injection-library

pycodeinjector: a simple python Code Injection library | Andrea Fortuna

August 20, 2018 - |________|_____________________|_ | | | | | | | | | | | | | |________________ |________|_P_y_c_I_n_d_o_l_o_r_|_| | | | Simple PoC for pycodeinjection library Proudly developed by Andrea Fortuna andrea@andreafortuna.org https://www.andreafortuna.org python pycIndolor.exe <process to inject> <commands to inject> Simply start the script passing target process and commands to inject and wait. Obviously the library is in a very early development stage: the actual aim is update it with any new discovery that i will find. Code injection on Windows using Python: a simple example