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What our analysis found

WuCai - Highlight and Note, used by 10,000 people, is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites and can inject scripts into pages. It comes from a trusted publisher and was last updated in October 2026.

WuCai - Highlight and Note

WuCai - Highlight and Note Chrome extension security report

ID: cjfempcnipbjiigappmofndiliohlpan

Supported Languages

🇸🇦Arabic
🇨🇳Chinese (Simplified)
🇹🇼Chinese (Traditional)
🇳🇱Dutch
🇺🇸English
🇫🇷French
🇩🇪German
🇮🇩Indonesian
🇮🇹Italian
🇯🇵Japanese
🇰🇷Korean
🇵🇱Polish
🇷🇺Russian
🇪🇸Spanish
🇹🇭Thai
🇹🇷Turkish
🇻🇳Vietnamese

Extension Info & Metadata

Status
Active
Version
26.10.3
Size
0.71 MB
Rating
4.3/5
Reviews
41
Users
10,000
Type
Extension
Updated
Oct 3, 2026
Category
Tools
Price
Paid
Featured
Yes
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
Download CRX
Chrome Web Store
Report Issue
This publisherTrack record
1extension
All still listed

Publisher Contextual Analysis

Trusted
Author
wucainote.com
Privacy
Privacy Policy
Help
Help Center
MX records exist
Yes
Domain exists
Yes
Is disposable
Yes
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
10,000

Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5
Screenshot 6
Screenshot 7

Install growth

Item
Type
Severity
Description
scripting
Permission
Critical
This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
*://*/*
Host
Critical
Broad host access — the extension can read/modify content on every website.
<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.
Broad Host Permissions
Risk Factor
High
This extension has broad host permissions allowing it to access many or all websites.
Broad Content Script Access
Risk Factor
High
This extension can inject scripts into any website.
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.
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.
activeTab
Permission
Medium
This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
file://*/*
Host
Medium
Host permission — access limited to this URL pattern.
contextMenus
Permission
Low
This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content.

About this extension

Highlight and take notes on web

Read the publisher’s full description

WuCai - Web Highlight, Annotation and Note Tool WuCai lets you highlight, annotate and take notes on any webpage. Support multi-level tags and web clipping. With our highlight manager, organize notes efficiently, boost learning and work productivity, save time, and stay focused. [Highlight & Annotation] • Highlight any webpage - stays after refresh • Multiple highlight colors for different needs • Powerful unlimited nested tags • No limit on highlights per page • Image highlighting • Convenient sidebar toolbar and keyboard shortcuts [Knowledge Management] • Capture ideas instantly • Powerful highlight organization system • Export highlights and notes (Text, Markdown) • Super copy - bypass website copy limits [Integration with Note Apps] • Multi-device sync (across different computers and browsers) • Seamless integration with Obsidian, Logseq, Workflowy, SiYuan Learn More • Help Guide: https://doc.wucai.site/ • User Feedback: https://feedback.dotalk.cn/ • Contact Us: wucaiapp@163.com Make knowledge accumulation easier and reading more enjoyable. WuCai helps you build your personal knowledge management system. By installing the extension, you agree to WuCai's Terms of Service and Privacy Policy • https://doc.wucai.site/about/terms-and-service.html • https://doc.wucai.site/about/privacy-policy.html

User reviews

Extension files

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No network indicators were extracted from this version.

Version
Size
Verdict
Findings
Permhash
26.10.3
Latest
0.71 MBNot scanned—
1f0b84cc99b5f8f428f527ef35d6c5a533caf456b9d3c2ea57539d4713d1d740
26.9.13
0.71 MBNot scanned—
1f0b84cc99b5f8f428f527ef35d6c5a533caf456b9d3c2ea57539d4713d1d740
26.9.12
0.71 MBNot scanned—
1f0b84cc99b5f8f428f527ef35d6c5a533caf456b9d3c2ea57539d4713d1d740
26.8.145
0.78 MBNot scanned—
1f0b84cc99b5f8f428f527ef35d6c5a533caf456b9d3c2ea57539d4713d1d740
26.8.152
0.71 MBNot scanned—
1f0b84cc99b5f8f428f527ef35d6c5a533caf456b9d3c2ea57539d4713d1d740
23.9.12
0.34 MBNot scanned—
1f0b84cc99b5f8f428f527ef35d6c5a533caf456b9d3c2ea57539d4713d1d740
23.9.19
0.34 MBNot scanned—
1f0b84cc99b5f8f428f527ef35d6c5a533caf456b9d3c2ea57539d4713d1d740
23.9.24
0.31 MBNot scanned—
1f0b84cc99b5f8f428f527ef35d6c5a533caf456b9d3c2ea57539d4713d1d740
23.10.7
0.31 MBNot scanned—
1f0b84cc99b5f8f428f527ef35d6c5a533caf456b9d3c2ea57539d4713d1d740
23.10.12
0.32 MBNot scanned—
1f0b84cc99b5f8f428f527ef35d6c5a533caf456b9d3c2ea57539d4713d1d740
Showing 1 to 10 of 190 rows
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