# CoinBattle Plugin - Comprehensive Audit Report

**Date:** 2025-12-09  
**Version:** 1.0.0  
**Auditor:** AI Code Analysis System

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## Executive Summary

The CoinBattle plugin is a feature-rich live battle game system with 2,867 lines of code across 11 files. This audit identifies critical security vulnerabilities, performance bottlenecks, missing functionality, and areas requiring hardening before production deployment.

**Overall Risk Level:** HIGH (P0 issues present)

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## Critical Findings

### Security (P0)
- ❌ No Content Security Policy
- ❌ No rate limiting on API endpoints  
- ❌ CSS editor security not implemented
- ❌ Event replay attacks possible

### Data Integrity (P0)
- ❌ No event idempotency (double coin awards possible)
- ❌ Race conditions in match end
- ❌ No database transactions

### Performance (P1)
- ⚠️ Synchronous DB writes block event processing
- ⚠️ No avatar caching (memory leak risk)
- ⚠️ DOM thrashing in leaderboard updates

### Coverage
- 📊 Unit Tests: 0%
- 📊 Integration Tests: 0%  
- 📊 Load Tests: Not implemented

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##  Full Report

See `docs/AUDIT_FULL_REPORT.md` for complete findings, prioritized issues (31 items P0-P3), and remediation plan.

**Total Estimated Effort:** 170-250 hours across 5 sprints

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## Immediate Action Items (P0 - Must Fix)

1. **EVENT DEDUPLICATION** - Prevent coin replay attacks
2. **RATE LIMITING** - Protect API endpoints  
3. **CSP HEADERS** - XSS protection
4. **ATOMIC OPERATIONS** - Lock match end
5. **BATCH DB WRITES** - Performance target: 5k events/min
6. **TRANSACTIONS** - Data consistency

**Sprint 1 Priority:** Address all P0 before production deployment.

