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Quizzes > Computers & Technology > Computers & IT

OWASP Top 10 Security Quiz: Test Your Web Security Knowledge

Think you can ace this web security quiz? Challenge your OWASP Top 10 skills now!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration promoting a free OWASP Top 10 cyber security quiz on a dark blue background.

This OWASP Top 10 quiz helps you see how well you spot common web app risks and use secure practices. In minutes, you'll find skill gaps to fix before an interview or audit, build speed with focused questions, and, when you're done, you can try another security quiz .

What does OWASP stand for?
Operational Web App Security Plan
Online Web Application Security Patrol
Open Web Application Security Project
Open World Application Security Protocol
OWASP is an acronym for the Open Web Application Security Project, a non-profit foundation that works to improve software security. It provides free articles, methodologies, documentation, tools, and technologies in the field. OWASP is widely recognized for its Top 10 list of critical web application security risks.
Which OWASP Top 10 category covers SQL injection?
A1: Injection
A3: Sensitive Data Exposure
A5: Security Misconfiguration
A2: Broken Authentication
SQL injection is a classic example of Injection flaws, which occur when untrusted data is sent to an interpreter as part of a command or query. This can allow attackers to execute unintended commands or access data without proper authorization. Injection is listed as the first category in OWASP's Top 10.
What does XSS stand for in web security?
External Script Source
Cross-Site Server
Execution Script Spoofing
Cross-Site Scripting
XSS stands for Cross-Site Scripting, which refers to attacks that inject malicious scripts into otherwise benign and trusted websites. These scripts run in the victim's browser, potentially stealing cookies or session tokens. OWASP lists XSS under its Top 10 list to highlight its prevalence.
Which of these headers can help mitigate XSS attacks?
Content-Security-Policy
X-Content-Type-Options
X-Frame-Options
Strict-Transport-Security
The Content-Security-Policy (CSP) header allows developers to control sources of content that browsers can load, greatly reducing the risk of XSS. By specifying approved domains for scripts, images, styles, and other resources, CSP prevents execution of unauthorized code. CSP is recommended by OWASP as part of defense-in-depth strategies.
What does CSRF stand for?
Client-Side Request Form
Cross-Site Response Forgery
Client-Script Reflected Forgery
Cross-Site Request Forgery
CSRF stands for Cross-Site Request Forgery, an attack that tricks a user's browser into performing unwanted actions on a web application they're authenticated with. It exploits the trust that a site has in the user's browser. OWASP highlights CSRF as a common web security risk.
What is the primary goal of the OWASP Top 10?
To provide penetration testing services
To raise awareness about the most critical web application security risks
To rank security vendors
To certify developers in security
The OWASP Top 10 is designed to raise awareness about the most critical security risks facing web applications. It provides a prioritized list of vulnerabilities so organizations can focus on addressing the most impactful issues. The list is updated every few years to reflect current threat landscapes.
Which of the following is an example of insecure direct object reference?
Eavesdropping on unsecured network traffic
Using default credentials
Submitting malicious JavaScript to a form
Accessing /user/1234 without verifying the user's authorization
Insecure Direct Object Reference (IDOR) occurs when an application provides direct access to objects based on user-supplied input without proper authorization checks. For example, changing the user ID in the URL may give unauthorized data access. This is categorized under Broken Access Control in OWASP.
Which type of vulnerability arises when user input is concatenated into a shell command?
Insecure Deserialization
Cross-Site Scripting
XML External Entity
OS Command Injection
OS Command Injection occurs when an attacker can insert malicious operating system commands into a form or URL, which are then executed by the server. This vulnerability results from improper input validation and command construction. It falls under the Injection category in OWASP Top 10.
Which OWASP category covers failure to restrict URL access based on roles?
Broken Access Control
Broken Authentication
Insufficient Logging & Monitoring
Security Misconfiguration
Broken Access Control refers to any flaw that allows users to act outside their intended permissions, such as accessing URLs intended for other roles. Proper enforcement of access control checks on the server side is essential. OWASP lists it as a top category because of its prevalence and impact.
Which of the following is a common defense against SQL injection?
Applying rate limiting
Use parameterized queries (prepared statements)
Using CAPTCHAs on input forms
Encrypting the database
Parameterized queries or prepared statements ensure that input values are treated strictly as data and not executable code. They effectively separate SQL logic from data, preventing attackers from altering the intent of a query. OWASP strongly recommends this technique for Injection prevention.
Which vulnerability allows attackers to manipulate memory or object state to execute unintended code?
XML External Entity (XXE)
Insecure Deserialization
Cross-Site Scripting
Server-Side Request Forgery
Insecure Deserialization occurs when untrusted data is deserialized by an application, potentially leading to remote code execution, replay attacks, or privilege escalation. Attackers craft malicious serialized objects to manipulate the application's logic. OWASP highlights this as a critical risk.
What does the SameSite cookie attribute help prevent?
Cross-Site Request Forgery
Session Hijacking
Clickjacking
Cross-Site Scripting
The SameSite attribute on cookies restricts them from being sent on cross-site requests unless explicitly allowed, thus mitigating CSRF attacks. It can be set to Lax or Strict to control cross-origin behavior. OWASP recommends it as part of secure cookie practices.
Which issue arises when detailed error messages reveal server configuration?
Injection
Cross-Site Scripting
Information Disclosure
Broken Access Control
Information Disclosure happens when applications leak sensitive details through verbose error messages, stack traces, or debug information. Attackers can use this data to map an environment or plan further attacks. OWASP lists it under Security Misconfiguration and related risks.
Which tool is commonly used to detect SQL injection vulnerabilities in web apps?
Wireshark
SQLMap
Nmap
Metasploit
SQLMap is an open-source penetration testing tool designed specifically to automate the process of detecting and exploiting SQL injection flaws. It supports a wide range of database engines and injection techniques. Many security professionals use it as part of their assessment toolkit.
Which OWASP category involves improperly configured security settings in applications or servers?
Sensitive Data Exposure
Security Misconfiguration
Insufficient Logging & Monitoring
Broken Authentication
Security Misconfiguration covers a broad range of issues, such as default credentials, verbose error messages, unnecessary features, and misconfigured HTTP headers. It is one of the most common vulnerabilities in web applications. OWASP recommends establishing secure configuration routines and automation.
Which vulnerability allows attackers to read local files via crafted URLs?
Cross-Site Scripting
Local File Inclusion (LFI)
Remote File Inclusion (RFI)
OS Command Injection
Local File Inclusion (LFI) occurs when a web application includes files on the server based on user input, without proper sanitization. Attackers can exploit this to view sensitive files like /etc/passwd. This is a serious security risk highlighted by OWASP.
How can you securely implement password reset functionality?
Accept new passwords via URL parameters
Store reset codes in plaintext in the database
Use single-use tokens sent via email that expire quickly
Allow password reset without authentication
Secure password reset flows use cryptographically strong, single-use tokens that are time-bound and invalidated after use. Sending them via email ensures only the legitimate user receives it. Storing tokens hashed and expiring them reduces replay or theft risks.
Which control can help prevent XML External Entity (XXE) attacks?
Use HTTPS for all API calls
Enforce strong password policies
Disable external entity processing in XML parsers
Implement rate limiting
Disabling DTD and external entity processing in XML parsers prevents the parser from resolving external references, blocking XXE attacks. Many modern libraries offer configuration options to turn off these features. OWASP's XML External Entity Prevention cheat sheet provides detailed guidance.
What methodology helps find logical flaws that automated scanners miss?
Manual penetration testing with threat modeling
Dependency checking
Automated vulnerability scanning
Static application security testing
Manual penetration testing combined with threat modeling allows experts to reason about business logic and complex workflows that automated tools often overlook. This approach uncovers authorization bypass, race conditions, and other logic flaws. OWASP encourages adding manual review to a security program.
Which practice reduces the impact of an SQL injection vulnerability?
Disabling HTTPS
Principle of least privilege for database accounts
Using complex SQL queries
Allowing direct DB connections from the client
Running database operations under least privilege ensures even if SQL injection is exploited, the attacker's actions are limited by restricted permissions. For example, a read-only account cannot modify schema or write data. This complements input validation and parameterization.
What is the primary risk of using insecure deserialization?
Insufficient logging
Broken authentication
Remote code execution or application logic manipulation
Cross-Site Request Forgery
Insecure deserialization can allow attackers to exploit the deserialization process to execute arbitrary code, alter application flow, or create denial-of-service conditions. The attacker crafts malicious objects that the application unserializes. OWASP describes it as high risk when using untrusted data.
Which technique helps protect APIs from excessive calls and brute-force attacks?
Using HTTP instead of HTTPS
Hiding API endpoints
Rate limiting with API keys or tokens
Disabling CORS
Rate limiting enforces a maximum number of requests in a given time frame per user or API key, preventing brute-force or denial-of-service attempts. It can be implemented at the API gateway or application level. OWASP recommends rate limiting as part of API security best practices.
Which security header helps prevent clickjacking?
X-Frame-Options
Referrer-Policy
Content-Security-Policy
Strict-Transport-Security
The X-Frame-Options header instructs browsers whether a page can be displayed in an iframe, preventing attackers from embedding the site and tricking users (clickjacking). Its values include DENY or SAMEORIGIN. OWASP cites this header under secure headers guidance.
Which vulnerability allows an attacker to cause your server to make requests to internal resources?
Cross-Site Scripting
Insecure Deserialization
XML External Entity
Server-Side Request Forgery (SSRF)
SSRF occurs when an attacker can trick the server into making HTTP requests to arbitrary domains, including internal or restricted resources. This can lead to data exfiltration or pivoting within the network. OWASP warns of SSRF as it often bypasses network controls.
Which approach helps defend against advanced client-side attacks like DOM-based XSS?
Sanitize and escape untrusted data in the JavaScript context
Disable JavaScript in browsers
Use HTTP instead of HTTPS
Rely solely on server-side input validation
DOM-based XSS occurs when client-side scripts write untrusted data into the DOM without proper sanitization. Defenses include encoding data to the correct context (HTML, attribute, JavaScript) and using libraries like DOMPurify. OWASP's XSS Prevention Cheat Sheet covers these techniques.
What is a robust way to secure cookies to protect against both XSS and CSRF?
Use short domain names
Store session tokens in localStorage
Rotate cookies hourly
Set HttpOnly, Secure, and SameSite attributes on cookies
HttpOnly prevents JavaScript access (mitigating XSS), Secure ensures cookies are only sent over HTTPS, and SameSite limits cross-site transmission (mitigating CSRF). Combining all three attributes provides layered protection for session management. OWASP highlights this as best practice.
Which design principle helps ensure that new application features don't introduce security regression?
Limit code reviews to major releases
Shift-left security with continuous integration testing
Use only manual testing
Deploy to production daily
Shift-left security integrates security tests earlier in the development lifecycle, often in continuous integration pipelines. Automated static and dynamic analysis catch regressions before deployment. This approach aligns with DevSecOps and reduces the chance of introducing new vulnerabilities.
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Study Outcomes

  1. Identify OWASP Top 10 Risks -

    Learn to recognize each of the OWASP Top 10 vulnerabilities in real-world applications through our OWASP Top 10 quiz and strengthen your web security quiz skills.

  2. Analyze Threat Scenarios -

    Evaluate common attack patterns and exploit paths to develop a deeper understanding of cyber security vulnerabilities quiz contexts and potential impacts.

  3. Apply Mitigation Strategies -

    Implement best practices and proactive controls to address identified threats, refining your approach beyond typical cyber security assessment LinkedIn answers.

  4. Compare Performance Benchmarks -

    Measure your results against standard cyber security assessment LinkedIn answers and knowbe4 quiz answers to uncover strengths and areas for improvement.

  5. Interpret Instant Feedback -

    Use immediate insights from the quiz to adapt your security mindset, prioritize learning gaps, and reinforce robust defenses before production deployment.

Cheat Sheet

  1. Preventing Injection Attacks -

    Injection flaws like SQL, NoSQL, and OS injections let attackers run unintended commands by sending malicious input to interpreters. Employ parameterized statements or prepared queries and apply the OWASP Injection Prevention Cheat Sheet to neutralize threats. Remember the mnemonic "S.P.E.V." (Sanitize, Parameterize, Escape, Validate) to recall steps when tackling a cyber security assessment linkedin answers.

  2. Securing Authentication and Session Management -

    Broken authentication vulnerabilities can let attackers hijack accounts if weak credentials or session handling are used. Implement multi-factor authentication, rotate session IDs on privilege changes, and follow NIST SP 800-63 for robust credential policies. Mastering these controls will boost your knowbe4 quiz answers and prepare you for similar scenarios in a web security quiz.

  3. Protecting Sensitive Data Exposure -

    Exposed sensitive data can lead to serious privacy breaches - always encrypt data at rest (AES-256) and in transit (TLS 1.2+ per NIST SP 800-52). Apply strict key management practices and regularly scan for unencrypted data using automated tools cited by OWASP and SANS. This approach not only covers OWASP Top 10 quiz topics but also sharpens your overall cyber security vulnerabilities quiz readiness.

  4. Mitigating Cross-Site Scripting (XSS) -

    XSS occurs when attackers inject malicious scripts into pages viewed by other users, risking cookie theft or UI manipulation. Use context-aware output encoding (e.g., OWASP's JavaScriptEncode) and deploy a robust Content Security Policy (CSP) to block unsafe scripts. Practicing these techniques will make your OWASP Top 10 quiz performance and cyber security assessment LinkedIn answers much more reliable.

  5. Enforcing Access Control and Configuration Hygiene -

    Improper access control or misconfigurations can expose sensitive endpoints or admin functions to unauthorized users. Adhere to the principle of least privilege, regularly review ACLs, and automate configuration scanning with tools like CIS-CAT, following NIST guidelines. These best practices form core questions in the free OWASP Top 10 quiz and elevate your overall web security quiz scores.

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