What is Web Security?

Web security is the practice and preventive measures implemented to protect websites, web applications, and web users from increasingly sophisticated cyber threats and vulnerabilities. It encompasses a wide range of techniques and technologies designed to ensure the confidentiality, integrity, and availability of web resources.

Web security safeguards against attacks such as code injection, cross-site scripting, data breaches, malware infections, and more. By implementing robust security measures, organizations can significantly minimize the risk of unauthorized access, data loss, and other harmful consequences.

Top 15 Most Common Web Security Concerns

Web security is a big concern for both individuals and organizations alike. As technology advances, so do the sophisticated techniques employed by cybercriminals to exploit vulnerabilities and compromise web resources. Understanding the most common web security concerns is crucial to protect sensitive data, maintain user privacy, and ensure the integrity of web applications. 

From code injection and cross-site scripting to data breaches and phishing schemes, this glossary explores the top 15 web security challeneges. By familiarizing ourselves with these threats, we can take proactive measures to mitigate risks, implement robust security measures, and fortify our online defenses against potential attacks.

Let’s’ get into them:

Code Injection

Code injection is when an attacker purposely injects malicious code into a web application’s code execution path. It can lead to arbitrary code execution and compromise the application’s security.

Cross-Site Request Forgery (CSRF)

This occurs when an attacker tricks a user’s browser into executing an unintended action on a web application where the user is authenticated. This can lead to unauthorized actions being performed without the user’s knowledge or consent.

Cross-Site Scripting (XSS)

Cross-Site Scripting (XSS) happens when an attacker deliberately injects malicious scripts into a web application, which are then executed by the victim’s browser. This allows the attacker to steal sensitive information or perform unauthorized actions on behalf of the user.

Data Breach

A data breach is an incident where unauthorized individuals gain unauthorized access to sensitive or confidential data stored by an organization. This can result in the exposure of personal information, financial data, or other valuable assets, leading to potential identity theft, fraud, or reputational damage.

Denial of Service (DoS)

A DDoS attack aims to disturb the availability of a web application or website by purposely overwhelming it with a high volume of simultaneous requests. This renders the service inaccessible to legitimate users and can result in financial losses or reputational damage.

Looking to Secure Your Network?

Malicious Redirects

Malicious redirects occur when an attacker hijacks a legitimate website or web page and redirects users to a malicious or phishing website. This often leads to the theft of sensitive information or the installation of malware on the victim’s device.


Malware is short for malicious software. It is designed to intentionally damage or gain unauthorized access to computer systems. It can be distributed through a variety of methods, including infected websites, compromised ads, or malicious downloads, posing a significant threat to web security.

Password Breach

A breach of this kind happens when an attacker gains unauthorized access to a database containing user passwords. This can occur due to weak passwords, poor encryption, or vulnerabilities in the authentication process, potentially leading to unauthorized access to user accounts.

Password-Cracking Tools

Password-cracking tools are software or programs designed to guess or crack passwords by systematically attempting various combinations. These tools significantly threaten web security by exploiting weak or easily guessable passwords.

Phishing Scheme

Phishing is a social engineering attack where attackers deceive users into unwittingly divulging sensitive information, such as passwords or credit card details, by impersonating trustworthy entities through emails, messages, or websites. It is a widespread challenge that can lead to financial loss and/or identity theft.

Remote File Inclusion

Remote File Inclusion (RFI) happens when an attacker succeeds in including remote files or scripts on a web server. This can lead to the execution of malicious code, unauthorized access, or data leakage.

SEO Spam

This is the manipulation of search engine rankings by injecting irrelevant or malicious content into web pages. SEO spam compromises web security by deceiving search engines and potentially exposing users to harmful websites or malware.

Session Hijacking

Also known as session sidejacking, session hijacking occurs when an attacker captures and steals a user’s session cookie or session ID. By hijacking the session, the attacker gains unauthorized access to the user’s account, compromising their privacy and potentially performing malicious actions.

Looking For a Web Security Solution?

SQL Injection

SQL Injection is when an attacker inserts malicious SQL statements into input fields or parameters of a web application. This can lead to unauthorized access to databases, data manipulation, or even the complete compromise of the application.

XXE Injection

XXE is short for XML External Entity Injection. It refers to when an attacker exploits the processing of XML input by including malicious external entities. This can result in unauthorized data disclosure, server-side request forgery, or denial of service attacks.

Web Security Tools

Web security tools play a critical role in protecting organizations and users from a wide range of threats. These tools are designed to assess, identify, and address vulnerabilities in web applications, ensuring a robust web security posture. 

These tools offer comprehensive protection from simulating attacks and uncovering flaws to preventing access to malicious websites and enforcing security policies. 

Such tools include:

Black Box Testing Tools

Black Box testing tools are used to assess the security of web applications without any knowledge of the internal workings. These tools simulate attacks and identify vulnerabilities, helping organizations improve their web security posture.

Fuzzing Tools

Fuzzing tools inject malformed or random data into web applications to identify vulnerabilities. They help uncover security flaws and weaknesses that may be exploited by attackers.

Secure Web Gateway

A Secure Web Gateway (SWG) protects users and organizations from web-based threats. It combines web filtering, malware protection, and other security features to prevent access to malicious websites, block harmful content, and enforce security policies.

Vulnerability Scanners

Vulnerability scanners automatically scan web applications and networks for known security vulnerabilities. They identify weaknesses in the system, such as outdated software versions or misconfigurations, enabling organizations to remediate them before they are exploited.

Web Application Firewalls

Web Application Firewalls (WAFs) protect web applications from known and emerging threats. They analyze incoming web traffic, filter out malicious requests, and enforce security policies to safeguard against attacks like SQL injection and cross-site scripting.

Web Scanning

Web scanning tools scan web applications for vulnerabilities and security weaknesses. They perform comprehensive assessments, identify potential threats, and provide recommendations for enhancing web security.

Web Security Measures

Web security encompasses various technologies, best practices, and protocols aimed at protecting web resources from threats. This includes secure communication protocols, encryption, authentication mechanisms, access controls, and other security measures.

White Box Testing Tools

White Box testing tools assess the security of web applications with complete knowledge of the internal structure and source code. They analyze the code, identify vulnerabilities, and help developers address security issues during the development process.

Upgrade Your Web Security with Perimeter 81

By understanding the common concerns and leveraging web security tools, organizations can proactively mitigate risks and ensure a secure online environment. It is essential to invest in robust web security solutions and stay updated with the latest best practices to safeguard against cyber threats.

To learn more about web security and how to protect your organization from web-based threats, explore Perimeter 81’s comprehensive cybersecurity solutions for web security here.

Looking for a Web Security Solution?

Supercharge your network security today with Perimeter 81.