Extension Auditor
Sign Up
Chrome Web Store
8Versions
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.

541 indicators in this extension

541 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

What our analysis found

Ace Script, used by 1,000,000 people, showed no malicious code in Extension Auditor's review. 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 trusted publisher and was last updated in August 2025.

Analyst notes

The extension is a userscript manager, and its broad permissions are necessary for its functionality. The provided source code snippets are benign library code (code editor language definitions, dependency injection) with no malicious logic. The ML model gave a low risk score (0.00), the permhash cluster is clean, the publisher is Google-trusted, and the third-party risk score likelihood is User complaints about adware likely stem from third-party scripts, not the extension itself.

Ace Script

Ace Script Chrome extension security report

ID: mjbepbhonbojpoaenhckjocchgfiaofo

Supported Languages

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

Extension Info & Metadata

Status
Active
Version
1.2.6
Size
4.49 MB
Rating
3.4/5
Reviews
735
Users
1,000,000
Type
Extension
Updated
Aug 19, 2025
Category
Tools
Price
Free
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
Scanned by Extension Auditor — Low RiskDevelopers: embed this badge to link to this report.

Publisher Contextual Analysis

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

Screenshots & videos

Screenshot 1
Screenshot 2

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.
<all_urls>
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.
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.
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.

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.

541 indicators in this extension

541 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

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

Read the publisher’s full description

Provide userscript support for browsers. Ace Script provides userscripts support for browsers. It works on browsers with WebExtensions support. It supports most scripts for Greasemonkey and Tampermonkey, and also allows you to create scripts with the ability to easily integrate the functionality of the Ace Stream software (www.acestream.org). Features: - Update automatically according to the meta data. - Scripts will be executed in order as shown in the list. - GM functions are supported. - Support import from and export to a zip file. - Support integration with Ace Stream software Privacy policy: https://acescript.acestream.me/privacy/

User reviews

Extension files

Browse and explore files within this extension package

Gain full insight into all external connections.

Upgrade for full visibility.

Sign In
URLs
459
IPv4
8

URLs

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

No URLs found
No IP addresses found

541 indicators in this extension

541 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
1.2.6
Latest
4.49 MBNo malware found0
fc7d55438ff4817d01b13c3f7d1bea9813cd98681158b54a717e4368c1452db0
1.2.4
0.51 MBNot scanned—
34bb63ceb3258da28f5974fe83868c4e4a7b003d38502d0fba04ebf8ad381654
1.2.3
0.51 MBNot scanned—
34bb63ceb3258da28f5974fe83868c4e4a7b003d38502d0fba04ebf8ad381654
1.2.2
0.51 MBNot scanned—
34bb63ceb3258da28f5974fe83868c4e4a7b003d38502d0fba04ebf8ad381654
1.2.1
0.51 MBNot scanned—
34bb63ceb3258da28f5974fe83868c4e4a7b003d38502d0fba04ebf8ad381654
1.2.0
0.51 MBNot scanned—
34bb63ceb3258da28f5974fe83868c4e4a7b003d38502d0fba04ebf8ad381654
1.1.17
0.38 MBNot scanned—
64bdac6a3f9ba7d23634b533500154e606c3189d07533c388bb3e500d6cac449
1.2.5
0.51 MBNot scanned—
34bb63ceb3258da28f5974fe83868c4e4a7b003d38502d0fba04ebf8ad381654
Showing 1 to 8 of 10 rows
Rows per page:

Code Diff

Compare extension code between any two versions.

0 changed files detected

No comparable text files found between these versions.

Gain full insight into all external connections.

Upgrade for full visibility.

Sign In

Related extensions

Popular in Tools