OWASP Top 10 2021 Published – Broken Access Control Jumps to the Top Spot

OWASP released a draft for 2021, the all-new OWASP Top 10 2021 comes with three new categories and position changes.

The OWASP Top 10 is a minimal or a basic security testing requirement for every web application.

The OWASP Top 10 was first introduced in 2003, and for there it took many revisions, now the draft report for 2021 is available now.

OWASP said that “the OWASP Top 10 2021 is a good start as a baseline for checklists and so on, but it’s not in itself sufficient”.

OWASP Top 10 2021

A01:2021 – Broken Access Control

Moves to the top from the fifth position in 2017, it is also called an authorization that defines how a web application grants access to content and functions to some users and not others.

A02:2021 – Cryptographic Failures

Shifted from third to the second position, previously it was called as Sensitive Data Exposure. The lack of encryption often leads to sensitive data exposure or system compromise.

A03:2021-Injection

Moves down to the third position from No.1, it is a technique in which the attacker takes non-validated input vulnerabilities and injects SQL commands through a web application that are executed in the backend database.

A04:2021 – Insecure Design

This is a new category with the OWASP Top 2021, it focuses on the risks related to design and architectural flaws.

“Insecure design is a broad category representing many different weaknesses, expressed as missing or ineffective control design”.

A05:2021 – Security Misconfiguration

Moved from 6th to fifth position, it focuses on the security hardening across the application stack or improperly configured permissions on cloud services.

A06:2021 – Vulnerable and Outdated Components

It was moved from the second position to six, as not enough attack data is available, this category focuses on the vulnerable versions of all components used on both client-side and server-side.

A07:2021 – Identification and Authentication Failures

Previously it was known as Broken Authentication, this category focuses on authentication failures.

It leads to automated attacks such as credential stuffing in which attackers use a list of usernames and passwords.

A08:2021 – Software and Data Integrity Failures

This is a new category introduced on OWASP Top 10 2021, it focuses on software and data integrity failures relate to code and infrastructure that do not protect against integrity violations.

A09:2021 – Security Logging and Monitoring Failures

Moves one step from the tenth position, this category helps to detect, escalate, and respond to active breaches.

A10:2021 – Server-Side Request Forgery (SSRF)

This category focuses on securing a connection that a web application is fetching a remote resource without validating the user-supplied URL.

Please follow us on LinkedinTwitterFacebook for daily Cybersecurity and hacking news updates.

Gurubaran

Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Recent Posts

Xanthorox AI: New Automated Hacking Tool Surfaces on Hacker Forums

A new malicious AI tool, Xanthorox AI, has emerged on underground hacker forums. Dubbed the "Killer…

5 minutes ago

Apollo Router Vulnerability Enables Resource Exhaustion via Optimization Bypass

A critical vulnerability (CVE-2025-32032) has been identified in Apollo Router, a widely used GraphQL federation…

42 minutes ago

WhatsApp for Windows Flaw Allowed Remote Code Execution via File Attachments

A critical vulnerability identified as CVE-2025-30401 was recently disclosed, highlighting a major security flaw in WhatsApp for…

1 hour ago

PoC Exploit Reveals SSH Key Exposure via Yelp Vulnerability on Ubuntu

Security researchers have uncovered a critical vulnerability (CVE-2025-3155) in Ubuntu's default help browser Yelp that…

2 hours ago

Threat Actors Exploit Toll Payment Services in Widespread Hacking Campaign

In a sophisticated cybercrime operation, the Smishing Triad, a China-based group, has been identified as…

11 hours ago

Everest Ransomware Gang’s Leak Site Hacked and Defaced

TechCrunch has uncovered a concerning development in consumer-grade spyware: a stealthy Android monitoring app that…

11 hours ago