Silk - Privacy Pass Client
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Risk Score
3.76
Risk Level:
Low
Recommendation:
🟢 LOW RISK — review
Top Risks
- Stale: 26 months since last update; <all_urls>+webRequest surface unmaintained for >2 years.
- Privacy policy URL points to Chrome Web Store listing page, not a real policy; retention undisclosed.
- Low rating (2.3) may reflect user-facing reliability issues or trust concerns.
- No CSP on MV3 extension with <all_urls>+webRequest; any future compromise has broad reach.
- third_party_sharing flagged true in policy classification with no scope binding to this extension.
Evidence
- developer_identity store Developer is Cloudflare Research (cloudflare.com); recognized org but no verified-publisher badge on store.
- maintenance_stale store Last updated April 2 2024; 26 months since update triggers +6.0 maintenance score.
- privacy_policy_invalid store Privacy policy URL is the extension's own store listing, not a real policy document.
- host_permissions_broad manifest <all_urls> paired with webRequest grants observation of all HTTP traffic.
- low_rating store Rating 2.3 — below 3.0 threshold; no review red-flags matched in structured scan.
- no_cve_no_obfuscation crx cve_findings_raw empty, obfuscation_score 0.0, code_findings_raw empty — clean scan.
- js_external_hosts crx 3 external hosts all under research.cloudflare.com subdomains — dev-controlled.
- triple_stale_fingerprint store >24mo stale + MV3 (no MV2 penalty) + no CVEs; v2 calibration +2.0 webstore applied.
Permissions Breakdown
- declarativeNetRequest medium Can block/modify network requests; scoped to rule-sets, lower risk than webRequest.
- storage low Persists extension state; no direct data exfil path.
- tabs medium Access to tab URLs and metadata across all open tabs.
- webRequest high Observe all HTTP requests across all URLs; combined with <all_urls> is broad.
- <all_urls> high Host permission covering every site; wide capability surface for webRequest.
Pillar Scores
Permissions5.50
Reputation3.00
Network3.50
Webstore2.00
Maintenance6.00
Privacy2.00
Code Quality0.00
CVE Exposure0.00
Scoring History
| sssiedna89f0a5bdp727562726963xsx | 4.61 | Medium | review | 2026-09-02 |
| v3.6 | 3.76 | Low | review | 2026-06-16 |
Bookkeeping
Rubric v3.6
Scored at 2026-06-16 07:16
Listing SHA
455250455232…
Force block
— not fired
Score recovered
no
Elapsed
22.8s