Major Magento Vulnerabilities

Major Magento Vulnerabilities (Complete Category List)

1. Remote Code Execution (RCE)

Severity: Critical

Allows attackers to execute arbitrary code on the server.

Common causes:

• Unpatched Magento core vulnerabilities
• Unsafe PHP deserialization
• Insecure admin controllers

Impact:

• Full server takeover
• Malware injection
• Data exfiltration

2. SQL Injection (SQLi)

Severity: Critical

Attackers manipulate database queries through unsanitized inputs.

Common entry points:

• Search fields
• Filters
• Custom extensions
• API endpoints

Impact:

• Database dump
• Admin credential theft
• Order and customer data compromise

3. Cross-Site Scripting (XSS)

Severity: High

Malicious scripts injected into pages viewed by users or admins.

Types:

• Stored XSS
• Reflected XSS
• DOM-based XSS

Impact:

• Session hijacking
• Admin account compromise
• Phishing attacks

4. Cross-Site Request Forgery (CSRF)

Severity: High

Forces authenticated users to perform unwanted actions.

Affected areas:

• Admin actions
• Customer account actions
• Cart and checkout operations

Impact:

• Unauthorized configuration changes
• Order manipulation

5. Authentication & Authorization Bypass

Severity: Critical

Allows attackers to gain admin access without valid credentials.

Causes:

• Weak ACL enforcement
• Token validation flaws
• Old admin authentication logic

Impact:

• Full admin panel access
• Store configuration takeover

6. Insecure PHP Object Deserialization

Severity: Critical

Occurs when untrusted serialized data is processed.

Common in:

• Old Magento versions
• Vulnerable third-party extensions

Impact:

• Remote code execution
• Privilege escalation

7. File Upload Vulnerabilities

Severity: High

Allows attackers to upload malicious files.

Common issues:

• Missing file type validation
• Improper media directory permissions

Impact:

• Web shell upload
• Malware execution

8. Directory Traversal

Severity: Medium to High

Attackers access restricted files using path manipulation.

Impact:

• Access to configuration files
• Exposure of database credentials

9. XML External Entity (XXE) Attacks

Severity: High

Occurs when XML input is improperly parsed.

Affected components:

• SOAP APIs
• Import/export features

Impact:

• Server-side request forgery (SSRF)
• File disclosure

10. API Security Vulnerabilities

Severity: High

Issues in REST and SOAP APIs.

Examples:

• Missing authentication
• Excessive data exposure
• Broken access control

Impact:

• Unauthorized data access
• Order and customer manipulation

11. Insecure Default Configuration

Severity: High

Examples:

• Default admin URL
• Weak file permissions
• Exposed setup scripts

Impact:

• Easier brute-force attacks
• Faster exploitation

12. Weak Admin Password & Brute Force Attacks

Severity: Medium to High

Common causes:

• Weak passwords
• No 2FA
• No rate limiting

Impact:

• Admin account takeover

13. Session Fixation & Session Hijacking

Severity: High

Attackers steal or reuse session IDs.

Impact:

• Customer or admin impersonation
• Unauthorized transactions

14. Information Disclosure

Severity: Medium

Examples:

• Stack traces exposed
• Debug mode enabled
• Error messages revealing paths

Impact:

• Helps attackers plan further attacks

15. Third-Party Extension Vulnerabilities

Severity: Varies (often Critical)

Root cause of many Magento breaches.

Issues include:

• Hardcoded credentials
• Backdoors
• Unsafe database queries

Impact:

• Full site compromise even on updated Magento core

16. Outdated JavaScript Libraries

Severity: Medium

Examples:

• Old jQuery versions
• Vulnerable RequireJS modules

Impact:

• XSS
• Client-side attacks

17. Cron Job Abuse

Severity: Medium

Improperly secured cron endpoints.

Impact:

• Resource exhaustion
• Unauthorized task execution

18. Denial of Service (DoS)

Severity: Medium

Caused by:

• Heavy search queries
• Malformed API requests
• Reindex abuse

Impact:

• Store downtime
• Performance degradation

19. Payment & Checkout Vulnerabilities

Severity: Critical

Examples:

• Payment method manipulation
• Price tampering
• Coupon abuse

Impact:

• Financial losses
• Fraud

20. End-of-Life (EOL) Risks

Severity: Critical

Running unsupported Magento versions means:

• No security patches
• Publicly known exploits remain open

Impact:

• Guaranteed compromise over time

Why Magento Upgrades Are Critical

Most of the vulnerabilities listed above are:

• Already patched in newer Magento versions
• Actively exploited on outdated stores

Upgrading Magento:

• Closes known CVEs
• Improves core security architecture
• Ensures compatibility with secure PHP versions
• Reduces dependency-related risks