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| 1 | +# Code Review Issues |
| 2 | + |
| 3 | +**Date:** 2026-01-13 |
| 4 | +**Reviewer:** Claude Opus 4.5 |
| 5 | +**Repository:** ScriptHammer (Planning Template) |
| 6 | + |
| 7 | +## Repository Context |
| 8 | + |
| 9 | +This is a **planning template repository** containing: |
| 10 | + |
| 11 | +- 46 feature specifications (markdown) |
| 12 | +- SVG wireframe viewer (`docs/design/wireframes/`) |
| 13 | +- 2 Python scripts: `validate-wireframe.py` (1999 lines), `screenshot-wireframes.py` (391 lines) |
| 14 | +- 1 HTML viewer with embedded JavaScript |
| 15 | + |
| 16 | +**No application source code exists** - this is spec-first planning. |
| 17 | + |
| 18 | +--- |
| 19 | + |
| 20 | +## Phase 1: Security Audit |
| 21 | + |
| 22 | +### Fixed Issues |
| 23 | + |
| 24 | +| Issue | File | Severity | Status | |
| 25 | +| --------------------------- | --------------- | -------- | --------- | |
| 26 | +| DOM-based XSS via innerHTML | index.html:1276 | CRITICAL | **FIXED** | |
| 27 | +| Path traversal in SVG refs | index.html:1240 | HIGH | **FIXED** | |
| 28 | +| XSS in error message path | index.html:1281 | MEDIUM | **FIXED** | |
| 29 | + |
| 30 | +### Remediation Applied |
| 31 | + |
| 32 | +1. **SVG Sanitization** (index.html:1280-1303) |
| 33 | + - Added `sanitizeSVG()` function that removes: |
| 34 | + - `<script>` elements |
| 35 | + - Event handlers (`onclick`, `onload`, etc.) |
| 36 | + - `javascript:` hrefs |
| 37 | + - Dangerous elements (`foreignObject`, `set`, animated hrefs) |
| 38 | + |
| 39 | +2. **Path Traversal Protection** (index.html:1241-1252) |
| 40 | + - Added `isValidSvgPath()` validator that blocks: |
| 41 | + - `..` sequences |
| 42 | + - Absolute paths (`/`) |
| 43 | + - Double slashes (`//`) |
| 44 | + - Only allows `.svg` files from `includes/` or same directory |
| 45 | + |
| 46 | +3. **Safe Error Rendering** (index.html:1315-1321) |
| 47 | + - Changed from template literal in innerHTML to createElement + textContent |
| 48 | + |
| 49 | +4. **Content Security Policy** (index.html:7) |
| 50 | + - Added CSP meta tag with: |
| 51 | + - `default-src 'self'` - blocks unauthorized resources |
| 52 | + - `script-src` - allows self, inline, and Google Analytics domains |
| 53 | + - `style-src` - allows self and inline styles |
| 54 | + - `img-src` - allows self, data URIs, and GA tracking pixels |
| 55 | + - `connect-src` - allows fetch to self and GA |
| 56 | + - `frame-ancestors 'self'` - prevents clickjacking |
| 57 | + |
| 58 | +### Remaining (Accepted Risk) |
| 59 | + |
| 60 | +| Issue | Severity | Decision | |
| 61 | +| --------------------------- | -------- | -------------------------------------------------------- | |
| 62 | +| No SRI for Google Analytics | MEDIUM | GA script changes frequently; SRI would break on updates | |
| 63 | + |
| 64 | +**Note:** SRI is not practical for GA because Google updates the script without notice. CSP already restricts which domains can serve scripts. |
| 65 | + |
| 66 | +### Python Scripts - No Issues Found |
| 67 | + |
| 68 | +Both `validate-wireframe.py` and `screenshot-wireframes.py` are **secure**: |
| 69 | + |
| 70 | +- No command injection (subprocess uses list form) |
| 71 | +- No path traversal (paths bounded to wireframes directory) |
| 72 | +- No hardcoded secrets |
| 73 | +- XXE not possible (Python 3.7+ default protects against it) |
| 74 | + |
| 75 | +--- |
| 76 | + |
| 77 | +## Phase 2: Performance Analysis |
| 78 | + |
| 79 | +### No Issues Found |
| 80 | + |
| 81 | +This is a planning template with minimal code: |
| 82 | + |
| 83 | +- No application code to optimize |
| 84 | +- Python scripts are already O(n) with binary search optimizations |
| 85 | +- HTML viewer uses vanilla JS (no framework overhead) |
| 86 | + |
| 87 | +--- |
| 88 | + |
| 89 | +## Phase 3: Code Quality |
| 90 | + |
| 91 | +### Fixed Issues |
| 92 | + |
| 93 | +| Issue | File | Line | Status | |
| 94 | +| --------------------- | --------------------- | ---- | --------- | |
| 95 | +| Unused import `field` | validate-wireframe.py | 28 | **FIXED** | |
| 96 | + |
| 97 | +### No Other Issues Found |
| 98 | + |
| 99 | +- No TODO/FIXME comments in executable code |
| 100 | +- No linter disables |
| 101 | +- No unimplemented stubs |
| 102 | +- No duplicate files |
| 103 | + |
| 104 | +--- |
| 105 | + |
| 106 | +## Phase 4: Test Coverage |
| 107 | + |
| 108 | +### Current State |
| 109 | + |
| 110 | +| Metric | Value | |
| 111 | +| ------------- | ----- | |
| 112 | +| Test files | 0 | |
| 113 | +| Test coverage | 0% | |
| 114 | + |
| 115 | +**Note:** This is expected for a planning template. Tests are specified in `features/testing/` but not implemented yet. |
| 116 | + |
| 117 | +--- |
| 118 | + |
| 119 | +## Summary |
| 120 | + |
| 121 | +| Category | Found | Fixed | Remaining | |
| 122 | +| ------------- | ----- | ----- | ----------------- | |
| 123 | +| Security | 6 | 5 | 1 (accepted risk) | |
| 124 | +| Performance | 0 | 0 | 0 | |
| 125 | +| Code Quality | 1 | 1 | 0 | |
| 126 | +| Test Coverage | N/A | N/A | N/A | |
| 127 | + |
| 128 | +**All actionable issues have been fixed.** The remaining item (SRI for Google Analytics) is an accepted risk because GA scripts change frequently and SRI would cause breakage. |
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