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SECURITY REPORT · EXTENSHI SCAN

Checkmate - Cashback, Savings & Rewards.

Edge extension·by Checkmate Savings Inc.
66
/ 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

Checkmate - Cashback, Savings & Rewards.'s safety score vs every other extension we've scanned
Globally
10%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 403,277 extensions
In Lifestyle
11%of lifestyle extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 47,467 lifestyle extensions
Findings
36
median 12Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
7
median 1Declared in manifest
Active users
448
median 26vs category median

Findings breakdown

Automated security signal · 36 distinct issues across 6 severities
36
distinct issues
detected
Scanners reported 56 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

3 risky permissions of 7 total
3 high-risk permissions require attention
This extension requests 7 permissions in total. 3 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
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
Observe web requests

Can monitor all network requests made by the browser

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Medium
Block requests with host access

Can block or redirect network requests and requires host permissions

Low
Run in background

Can run scripts in the background when not actively in use

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Scan performed by extenshi.io · Sep 6, 2026
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