Chrome Web Store
1Versions
1Code reviewed

No malware found

In code review

Our reviewer read this extension’s code and found no malicious behaviour. Review the permissions below before installing.

17 indicators in this extension

17 indicators
1 version analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

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What our analysis found

Cashback Master, used by 2,000 people, showed no malicious code in Extension Auditor's review. Its permissions mean it can observe network requests. It comes from a trusted publisher and was last updated in October 2025.

Analyst notes

The extension implements standard cashback affiliate redirect functionality: it fetches a shop rules list from [domain withheld], applies declarativeNetRequest redirect rules to route users through affiliate links, and renders a React-based notification banner. All network traffic ( fetch, user_settings sync, avatar image loads) goes to publisher-controlled subdomains of [domain withheld]. No data is sent to unrelated third parties. The ML model independently gave a score of 0.00 (low), directly contradicting the permission-based Critical risk-engine rating; the Critical rating is explained entirely by the broad permissions necessary for a cashback extension (webRequest, declarativeNetRequest, cookies, all-URLs host_permissions) — all of which are needed for the redirect interception mechanism. The permhash cluster is clean (0 of 7 flagged as malware). Minor privacy note: the content script sends btoa(document.referrer) as part of the cashback notification image URL ( line 7637-7654), but this goes to the publisher's own [domain withheld] and falls within first-party data collection; it is not reported as a finding under the verdict rules.

Cashback Master

Cashback Master Chrome extension security report

ID: ejcfngdpgojodfjcajnglnhppglcfedg

Supported Languages

🇺🇸English

Extension Info & Metadata

Status
Active
Version
1.0.0.2
Size
0.16 MB
Rating
5.0/5
Reviews
2
Users
2,000
Type
Extension
Updated
Oct 29, 2025
Category
Shopping
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
This publisherTrack record
2extensions
1 no longer listed
Scanned by Extension Auditor — Low RiskDevelopers: embed this badge to link to this report.

Publisher Contextual Analysis

Trusted
Author
Ali Cupons
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
2
Active
1
Obsolete
1
Listed
1
Unlisted
1
Users
8,000

Screenshots & videos

Screenshot 1

Install growth

Item
Type
Severity
Description
webRequest
Permission
Critical
This permission enables the extension to monitor and analyze all web requests made by the browser. Rated Critical because it can observe all network traffic including sensitive data, track browsing behavior, and gather authentication tokens.
declarativeNetRequestWithHostAccess
Permission
Critical
This permission combines network request modification with host permissions. Rated Critical because it can modify requests for specific domains, potentially targeting sensitive websites with precise attack rules.
http://*/*
Host
Critical
Broad host access — the extension can read/modify content on every website.
https://*/*
Host
Critical
Broad host access — the extension can read/modify content on every website.
cookies
Permission
High
This permission provides full access to read and modify browser cookies. Rated High because it can steal session tokens, modify authentication cookies, and compromise accounts across websites.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
tabs
Permission
Medium
This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.

Each row lists a threat category the scanner evaluates. A checkmark means the review ran and found no matching issues in that category for this version.

  • Data Exfiltration

    Code review completed; no malicious patterns detected for this category.

  • Unauthorized Data Collection

    Code review completed; no malicious patterns detected for this category.

  • Network Interception

    Code review completed; no malicious patterns detected for this category.

  • Code Injection

    Code review completed; no malicious patterns detected for this category.

  • Credential Theft

    Code review completed; no malicious patterns detected for this category.

  • Obfuscation

    Code review completed; no malicious patterns detected for this category.

  • Tracking

    Code review completed; no malicious patterns detected for this category.

  • Privilege Escalation

    Code review completed; no malicious patterns detected for this category.

  • Phishing

    Code review completed; no malicious patterns detected for this category.

  • Remote Code Loading

    Code review completed; no malicious patterns detected for this category.

  • Other

    Code review completed; no malicious patterns detected for this category.

17 indicators in this extension

17 indicators
1 version analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

About this extension

Save money and earn cashback automatically at thousands of online stores with Cashback Master. Simple, smart, secure.

Read the publisher’s full description

Cashback Master makes it effortless to save money every time you shop online. Our free browser extension automatically finds available cashback for the store open on your current page, so you never miss a chance to earn rewards on your purchases. Key Features: One-click activation for cashback Auto-Cashback feature available — enable it in extension settings to activate cashback automatically Easy to install and completely free to use Secure and user-friendly experience How it works: Just install the extension and shop as usual. When Cashback Master finds a cashback offer, a quick notification lets you activate it. Enable Auto-Cashback in the settings for hands-free savings every time you buy online. Please note that the extension uses affiliate links as cashback links. Each user is assigned a unique identifier, which is used when making requests to the list of affiliate links. This identifier is necessary for resolving disputes and is not shared with third parties. Start earning cashback and save more on every purchase with Cashback Master!

User reviews

Extension files

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URLs
9
IPv4
1

URLs

View the external URLs this extension communicates with to understand its network activity and data interactions.

No URLs found
No IP addresses found

17 indicators in this extension

17 indicators
1 version analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe
Version
Size
Verdict
Findings
Permhash
1.0.0.2
Latest
0.16 MBNo malware found0
f919afccd2580a4ef1f12b1d5b4b049684a31d3c40165f518ef89a59971faab9
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