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How do you remediate Stored Cross-Site Scripting (XSS) and Broken Object Level Authorization (BOLA)?

Web App Security & OWASP Top 10 · 2 saved versions

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Version 1 (Edit)

Edited by Gaurav Bhasin · Aug 24, 2026 4:19 AM

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Title snapshot

How do you remediate Stored Cross-Site Scripting (XSS) and Broken Object Level Authorization (BOLA)?

Summary snapshot
Context-aware HTML entity encoding, Content Security Policy (CSP) headers, and tenant access verification.
Content snapshot
### Remediation Protocol 1. **Context-Aware Encoding**: Pass user input through strict HTML/attribute escaping libraries before rendering in Blade templates. 2. **Enforce Tenant Authorization**: Never rely solely on URL parameters (`/orders/{id}`); always verify that `order->user_id === auth()->id()` inside policy gates. 3. **Set Modern Security Headers**: Enforce `Content-Security-Policy: default-src 'self'` and `X-Content-Type-Options: nosniff`.
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https://owasp.org/www-project-top-ten/

Version 1 (Original Post)

Published by Gaurav Bhasin · Aug 9, 2026 5:37 AM

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Events Log

Post originally created and published to the Global Hub.

Original Title

How do you remediate Stored Cross-Site Scripting (XSS) and Broken Object Level Authorization (BOLA)?

Original Summary
Context-aware HTML entity encoding, Content Security Policy (CSP) headers, and tenant access verification.
Original Content
### Remediation Protocol 1. **Context-Aware Encoding**: Pass user input through strict HTML/attribute escaping libraries before rendering in Blade templates. 2. **Enforce Tenant Authorization**: Never rely solely on URL parameters (`/orders/{id}`); always verify that `order->user_id === auth()->id()` inside policy gates. 3. **Set Modern Security Headers**: Enforce `Content-Security-Policy: default-src 'self'` and `X-Content-Type-Options: nosniff`.
Original Sources

https://owasp.org/www-project-top-ten/