sf-security

sf-security

Implement Salesforce Commerce security across B2C and B2B platforms.

Before Writing Code

Always fetch the latest official documentation BEFORE implementing security controls:

• SLAS Security: WebSearch "Salesforce SLAS OAuth 2.1 security guide 2026" and WebFetch official Commerce API docs
• B2C Commerce Security: WebSearch "Salesforce B2C Commerce security best practices 2026" and WebFetch the security reference
• Salesforce Security Guide: WebSearch "Salesforce security guide OWASP 2026" and WebFetch official documentation
• PCI DSS Requirements: WebSearch "PCI DSS v4 requirements ecommerce 2026" for current compliance standards

Why: OAuth flows, CSRF protection patterns, encoding modes, and PCI requirements evolve. Live docs ensure correct implementation of current security standards.

Conceptual Architecture

Authentication

SLAS (B2C Commerce) -- OAuth 2.1 with PKCE:

Client Type	Flow	Use Case
Public (browser/PWA Kit)	authorization_code_pkce	Guest and registered users
Private (server-side)	client_credentials	Guest sessions
Private (server-side)	authorization_code	Registered users
Any	Refresh token	Session extension

PKCE (Proof Key for Code Exchange) is required for all public client flows. Guest tokens enable anonymous shopping before login.

Salesforce OAuth (B2B Commerce):

Flow	Use Case
Connected Apps	OAuth application registration
JWT Bearer	Server-to-server authentication
Web Server Flow	User authorization with redirect

Session Management:

• Secure, random, unpredictable session IDs
• Token expiration with renewal handling
• Secure cookies: HttpOnly, Secure, SameSite attributes
• Session invalidation on logout, timeout, or security events

Token Lifecycle:

Token	Typical TTL	Storage
Access Token	30 minutes	Memory or httpOnly cookie
Refresh Token	30 days	httpOnly cookie (never localStorage)
CSRF Token	Per request	Hidden form field or custom header

XSS Prevention

B2C Commerce (ISML):

Encoding Mode	Context
htmlcontent	HTML body text
htmlsinglequote / htmldoublequote	HTML attributes
jshtml	JavaScript strings in HTML
jsonvalue	JSON data
uricomponent	URL parameters

Always use <isprint> with explicit encoding. Never use raw ${variable} for user-controlled data. Set Content Security Policy headers to restrict script sources.

B2B Commerce (LWC):

• Automatic encoding in Lightning template expressions
• Lightning Web Security (LWS) replaces Locker Service (Spring '23+)
• Use textContent instead of innerHTML in JavaScript
• Use lightning-formatted-* components for safe rendering

Content Security Policy

Directive	Purpose
default-src	Fallback for all resource types
script-src	Allowed script sources (restrict to self and trusted CDNs)
style-src	Allowed stylesheet sources
img-src	Allowed image sources
connect-src	Allowed API/fetch targets
frame-ancestors	Clickjacking protection

Configure CSP headers in Business Manager or via server configuration. Use nonce or hash for inline scripts rather than unsafe-inline.

CSRF Protection

B2C Commerce: Validate tokens with CSRFProtection.validateRequest() in controllers. Generate tokens with CSRFProtection.generateToken(). Include hidden token fields in all state-changing forms. Use double-submit cookie pattern for AJAX.

B2B Commerce: Built-in Salesforce CSRF protection. <lightning-input> includes tokens automatically. @AuraEnabled Apex methods have CSRF protection.

Input Validation

Layer	Technique
Client-side	HTML5 validation, JavaScript checks (UX only, not security)
Server-side	Whitelist validation, type checking, length limits
Form definitions	SFCC XML form definitions with validation rules
Query API	Parameterized queries -- never string concatenation

Always validate on the server. Client-side validation is a convenience, not a security measure.

PCI Compliance

Requirement	Implementation
Tokenization	Never store raw card numbers; use tokenized payment methods
SAQ-A Scope	Use hosted payment fields to minimize PCI scope
TLS 1.2+	Enforce for all API communication and payment processing
Log Masking	No card data in application logs
Gateway	Use Salesforce Commerce Payments or validated third-party processors

RBAC (Role-Based Access Control)

B2C Commerce: Business Manager roles (Admin, Merchant, Content) with granular, site-specific permissions. Custom roles for organization-specific needs.

B2B Commerce: Salesforce profiles and permission sets. Buyer permissions control ordering (browse, cart, checkout, approve). Account hierarchy restricts visibility based on relationships.

B2B Sharing Rules:

• Organization-wide defaults set baseline visibility
• Sharing rules grant additional access to specific groups
• Account hierarchies provide implicit sharing up the chain
• Manual sharing for ad-hoc access grants

OWASP Top 10 Protections

Threat	Mitigation
Injection	Parameterized queries via Query API; input whitelisting
Broken Auth	SLAS/OAuth best practices; MFA where available; strong password policies
Sensitive Data Exposure	Salesforce Shield encryption at rest (B2B); TLS in transit; log masking
Security Misconfiguration	Disable dev features in production; change default credentials; suppress stack traces
Access Control	Authorization checks on every request; least privilege principle
Monitoring	Log authentication events, failed logins, suspicious activity

Best Practices

Implementation

• Always encode output using the correct mode for context (HTML, JS, URL, JSON).
• Validate input at the boundary -- whitelist acceptable values, reject everything else.
• Implement CSRF protection on all state-changing operations.
• Enforce TLS 1.2+ for all communications.

Credentials and Access

• Rotate API keys, client secrets, and certificates on a regular schedule.
• Grant minimum necessary permissions (least privilege).
• Restrict customer data access to authorized users and systems only.
• Store credentials in Business Manager services or Salesforce Named Credentials, never in code.

Operations

• Log authentication events, failed login attempts, and suspicious activity.
• Audit code for security issues regularly; conduct penetration testing.
• Keep dependencies updated; scan for known vulnerabilities.
• Maintain an incident response plan for security breaches.

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Fetch the SLAS OAuth 2.1 guide, B2C Commerce security reference, and Salesforce OWASP documentation for exact token flows, encoding specifications, and compliance requirements before implementing.