dceaf82934
Full-codebase-audit 2026-05-30 outputs: - Audit report: 09 - Audits/Full Codebase Audit - 2026-05-30.md - 81 issue files ISSUE-055..135 (decisions + 1 skipped no-brainer). - Scanner docs from scratch (was zero): architecture, data model, API ref, payment flow, operations runbook + repo README. - Doc-sync updates across API reference, data models, flows, design system. - Secret Rotation Runbook (08 - Operations) for the exposed credentials. - Reusable workflow guide (07 - Development) + .claude/workflows/full-codebase-audit.js. Issues remain status:open intentionally — the code fixes are uncommitted-then-committed working-tree changes per repo and aren't "resolved" until merged/deployed. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
40 lines
1.4 KiB
Markdown
40 lines
1.4 KiB
Markdown
---
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issue: 083
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title: "Frontend: no Content-Security-Policy header in Next.js config"
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severity: medium
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domain: Security
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labels: [security, frontend, csp]
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status: open
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created: 2026-05-30
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source: Full Codebase Audit 2026-05-30
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---
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# Frontend: no Content-Security-Policy header in Next.js config
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**Severity:** medium
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**Domain:** Security
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**Labels:** security, frontend, csp
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## Description
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`next.config.ts:29` does not set a `Content-Security-Policy` header. Without CSP, XSS attacks have unrestricted script execution, making token theft (localStorage) and DOM-based attacks much easier.
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## Options
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1. Ship `Content-Security-Policy-Report-Only` first to collect violations, then enforce — safe rollout.
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2. Enforce a moderate CSP allowing required hosts (Telegram, WalletConnect, Mapbox, Sentry) with nonces for inline scripts.
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3. Strict CSP with nonces and removal of all inline scripts — strongest but requires refactoring `layout.tsx` inline scripts.
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## Recommendation
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Ship `Content-Security-Policy-Report-Only` first, gather violations for a week, then enforce. Inline scripts in `layout.tsx` must move to nonces. Non-trivial rollout.
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## Affected Files
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- `frontend/next.config.ts:29`
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- `frontend/src/app/layout.tsx` — inline scripts that need nonces
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## References
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- [Full Codebase Audit 2026-05-30](../09%20-%20Audits/Full%20Codebase%20Audit%20-%202026-05-30.md) — DEC-8
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