SECURITY REPORT · EXTENSHI SCAN
MarketMaster — Kalshi & Polymarket Edge Scanner + Arbitrage
Chrome extension·by MarketMaster
0
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue
How it ranks
MarketMaster — Kalshi & Polymarket Edge Scanner + Arbitrage's safety score vs every other extension we've scanned
Globally
77.88%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
67.88%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
82
median 38Lower is safer
Risky permissions
2
median 1Critical + high perms
Total permissions
6
median 4All declared perms
Critical findings
16
median 2Severity = Critical
Findings breakdown
Automated security signal · 82 findings across 5 severities
82
findings
detected
detected
Critical1620%
High00%
Medium6579%
Low11%
Info00%
Permissions requested
2 risky permissions of 6 total
2 high-risk permissions require attention
This extension requests 6 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Low
Schedule tasks
Can schedule periodic background tasks
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Scan performed by extenshi.io · Jun 25, 2026· partial run (some scanners failed)
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