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performing-content-security-policy-bypass

by Cybersecurity Skills

Analyze Content-Security-Policy headers and bypass them to achieve cross-site scripting by exploiting unsafe-inline/unsafe-eval, whitelisted JSONP endpoints, base-uri and form-action gaps, and nonce/hash weaknesses, then exfiltrate data even without script-src control. Use during web application security assessments or bug bounty hunting when XSS is found but blocked by CSP, or when auditing CSP header configuration for weaknesses.

v1.0.1New

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Install this skill

Run this command in your terminal. No account required — it auto-detects your AI tool and installs the skill file.

npx @skills-hub-ai/cli install cybersecurity-skills-performing-content-security-policy-bypass
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Setup by platform

Claude Code

~/.claude/skills/<skill>/SKILL.md

Setup guide →

Install

One-click setup for your editor

Run in your project root

npx @skills-hub-ai/cli install cybersecurity-skills-performing-content-security-policy-bypass --target claude-code
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Frequently asked questions about performing-content-security-policy-bypass

What does the performing-content-security-policy-bypass skill do?

Analyze Content-Security-Policy headers and bypass them to achieve cross-site scripting by exploiting unsafe-inline/unsafe-eval, whitelisted JSONP endpoints, base-uri and form-action gaps, and nonce/hash weaknesses, then exfiltrate data even without script-src control. Use during web application security assessments or bug bounty hunting when XSS is found but blocked by CSP, or when auditing CSP header configuration for weaknesses. It's a reusable SKILL.md instruction set that loads into your AI coding assistant on demand, no prompt engineering, no copy-pasting every session.

How do I install the performing-content-security-policy-bypass skill?

Run `npx @skills-hub-ai/cli install cybersecurity-skills-performing-content-security-policy-bypass` from your terminal. The CLI writes the SKILL.md to the correct location for your AI tool (e.g. ~/.claude/skills/cybersecurity-skills-performing-content-security-policy-bypass/ for Claude Code or ~/.cursor/skills/ for Cursor with --target cursor) and adds it to your project's .skills.json lockfile.

Which AI tools does performing-content-security-policy-bypass work with?

performing-content-security-policy-bypass runs in Claude Code. It follows the open Agent Skills standard (SKILL.md), so the same skill works in every supported tool without modification.

Is the performing-content-security-policy-bypass skill free?

Yes. Every skill on skills-hub.ai is free and open-source. There are no premium tiers, paywalls, or usage limits. You only pay for whatever AI assistant you're already using.

How do I use performing-content-security-policy-bypass after installing it?

In Claude Code, type `/cybersecurity-skills-performing-content-security-policy-bypass` (or whatever slash command the skill registers) and the AI follows the skill's instructions immediately. You can also reference it by name in natural language, your AI loads the skill into context when relevant.

Can I share the performing-content-security-policy-bypass skill with my team?

Yes. Commit your project's .skills.json lockfile and teammates run `npx @skills-hub-ai/cli install` (no args) to install every skill at the exact version you pinned. Organization-scoped installs work via skills-hub.ai organizations.