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56 indicators in this extension

56 indicators
0 versions analysed

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What our analysis found

Yomichan, used by 14,438 people, is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites and allows unsafe code evaluation. It was last updated in June 2020.

Yomichan Firefox extension security report

ID: yomichan

Extension Info & Metadata

Status
Active
Version
20.5.22.1
Size
9.61 MB
Rating
4.3/5
Reviews
123
Users
14,438
Type
Extension
Updated
Jun 5, 2020
Category
N/A
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
Download CRX
Firefox Add-ons
Report Issue
This publisherTrack record
1extension
All still listed

Publisher Contextual Analysis

Author
FooSoft
Privacy
Privacy Policy
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
14,438

Install growth

Item
Type
Severity
Description
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
clipboardWrite
Permission
High
This permission allows modification of clipboard content. Rated High because it can inject malicious content into the clipboard, modify copied passwords, and manipulate copied data.
nativeMessaging
Permission
High
This permission enables communication with applications installed on your computer. Rated High because it can exchange data with native programs, potentially exposing system-level information and local files.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 15% increase: Older manifest version lacks modern security controls• 25% increase: Unsafe code evaluation capabilities increase attack surface• 10% increase: About:blank access enables potential sandbox escape vectors
Broad Host Permissions
Risk Factor
High
This extension has broad host permissions allowing it to access many or all websites.
Unsafe JavaScript Evaluation
Risk Factor
High
This extension's CSP allows "unsafe-eval".
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.
unlimitedStorage
Permission
Medium
This permission removes storage quota restrictions. Rated Medium because it can store large amounts of user data without limits, potentially impacting browser performance and storing extensive tracking data.
About:blank Access
Risk Factor
Medium
This extension can run content scripts in about:blank pages.
Older Manifest Version
Risk Factor
Medium
This extension uses Manifest Version 2

56 indicators in this extension

56 indicators
0 versions 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

Yomichan turns your browser into a tool for building Japanese language literacy by helping you to decipher texts which would be otherwise too difficult tackle. It features a robust dictionary with EPWING and flashcard creation support.

User reviews

Extension files

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URLs
55
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

56 indicators in this extension

56 indicators
0 versions 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
20.5.22.1
Latest
9.61 MBNot scanned—
b194caa9a43a4d08fac3ad0daca5e22817ab426b2cac317b8596377c5d66c957
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