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What our analysis found

ScriptCat Beta, used by 31,054 people, is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites, can inject scripts into pages and can observe network requests. It comes from a publisher with 11 extensions and was last updated in June 2026.

ScriptCat Beta

ScriptCat Beta Edge extension security report

ID: nimmbghgpcjmeniofmpdfkofcedcjpfi

Supported Languages

🇨🇳Chinese (Simplified)
🇹🇼Chinese (Traditional)
🇩🇪German
🇯🇵Japanese
🇷🇺Russian
🇺🇸US English
🇻🇳Vietnamese

Extension Info & Metadata

Status
Active
Version
1.5.0.1200
Size
4.88 MB
Rating
3.9/5
Reviews
14
Users
31,054
Type
Extension
Updated
Jun 13, 2026
Category
Productivity
Price
Paid
Featured
Yes
Visibility
Listed
Mature
No
By Google
No
Trusted
No
Download CRX
Edge Add-ons
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This publisherTrack record
11extensions
1 no longer listed

Publisher Contextual Analysis

Author
王一之
Extensions
11
Active
7
Obsolete
1
Listed
11
Unlisted
0
Users
2,088,468

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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.
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.
userScripts
Permission
Critical
This permission allows registration of arbitrary user scripts that run in a page's main world. Rated Critical because the scripts execute with full access to page JavaScript, can be updated at runtime from remote code, and bypass the isolated world that normally contains content scripts.
declarativeNetRequest
Permission
Critical
This permission allows the extension to define rules to block, redirect, or modify network requests. Rated Critical because it can control all network traffic, potentially blocking security updates or redirecting to malicious sites.
debugger
Permission
Critical
This permission grants the extension ability to debug and control other extensions and browser tabs. Rated Critical because it can access and modify other extensions' internal state, inject code, and access sensitive data from any tab.
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
Dangerous Permission Combination: scripting,<all_urls>,webRequest
Risk Factor
Critical
Enables sophisticated data theft through script injection and traffic monitoring
Dangerous Permission Combination: scripting,<all_urls>,cookies
Risk Factor
Critical
Enables sophisticated data theft through script injection and traffic monitoring
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.
offscreen
Permission
High
This permission creates hidden browser documents with full DOM access. Rated High because it can run background operations invisibly, potentially executing malicious code without user awareness.
downloads
Permission
High
This permission controls file downloads and accesses download history. Rated High because it can download malicious files, access sensitive downloaded documents, and track user download patterns.
webNavigation
Permission
High
This permission enables monitoring of all browser navigation events and transitions. Rated High because it can track every page visit, navigation method, and browsing pattern, potentially exposing sensitive browsing behavior and user activities.
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.
Dangerous Permission Combination: scripting,cookies,webRequest
Risk Factor
High
Enables extensions to interact with scripts, modify files and downloads, and alter browsing history and bookmarks, potentially affecting data integrity and user control.
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.
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.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.
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.
notifications
Permission
Low
This permission displays system notifications. Rated Low because it can only show user-visible notifications without accessing system data.

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About this extension

Everything can be scripted, allowing your browser to do more!

Read the publisher’s full description

ScriptCat, a browser extension that can execute user scripts, everything can be scripted, allowing your browser to do more things! ## About We built a framework for executing background scripts and Greasemonkey/Tampermonkey scripts based on the design ideas of Greasemonkey/Tampermonkey. It also has several unique APIs that enable scripts to do more. Furthermore, we provide a fantastic online editor that makes script code development more pleasant and easy. **Please Star it if you find it useful. ❤❤❤** ## Features - Cloud Sync: script recovery is easy when changing or reinstalling browser - Scripts subscription: creating your own script collections or enabling multiple scripts to work together. - Compatibility: allowing seamless migration from other userscript managers. - Background scripts: allowing your scripts to run continuously in the background. - Scheduled scripts: allowing for daily scheduled tasks. You can use them for automatic check-ins, timed reminders, and more. - Rich API: more powerful APIs than other managers, which can realize more functions. - Sandbox mechanism: ensuring user safety, script permissions are granted only with user consent. - Excellent editor: providing API auto-completion and ESLint. - Nice UI ...More features are Coming. ### Discussion - Telegram: https://t.me/scriptscat - Discord: https://discord.gg/JF76nHCCM7 ## Other API Document https://docs.scriptcat.org/en/docs/dev/ Github: https://github.com/scriptscat/scriptcat

User reviews

Extension files

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URLs
522
IPv4
8

URLs

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Version
Size
Verdict
Findings
Permhash
1.5.0.1200
Latest
4.88 MBNot scanned—
cc1c20e57fc814f5737062f50991b79e64444706e9aefdbb745d2052f4178990
0.17.0.1001
5.84 MBNot scanned—
cc1c20e57fc814f5737062f50991b79e64444706e9aefdbb745d2052f4178990
0.17.0.1003
9.27 MBNot scanned—
cc1c20e57fc814f5737062f50991b79e64444706e9aefdbb745d2052f4178990
0.17.0.1004
9.16 MBNot scanned—
cc1c20e57fc814f5737062f50991b79e64444706e9aefdbb745d2052f4178990
0.17.0.1005
4.59 MBNot scanned—
cc1c20e57fc814f5737062f50991b79e64444706e9aefdbb745d2052f4178990
0.17.0.1300
4.63 MBNot scanned—
cc1c20e57fc814f5737062f50991b79e64444706e9aefdbb745d2052f4178990
0.17.0.1400
4.65 MBNot scanned—
cc1c20e57fc814f5737062f50991b79e64444706e9aefdbb745d2052f4178990
0.18.1.1100
4.64 MBNot scanned—
cc1c20e57fc814f5737062f50991b79e64444706e9aefdbb745d2052f4178990
0.18.2.1100
4.73 MBNot scanned—
cc1c20e57fc814f5737062f50991b79e64444706e9aefdbb745d2052f4178990
1.0.0.1200
4.53 MBNot scanned—
cc1c20e57fc814f5737062f50991b79e64444706e9aefdbb745d2052f4178990
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