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Blocksi Enterprise Edition

Version 4.3.23 View in Chrome Web Store

Last scanned: 24 days ago | force re-scan

Extension Details

Developer: blocksi.net
Rating: 1.2 ★ (946 ratings)
Users: 2,000,000

Context-Aware Verdict

CRITICAL
Overall Risk
Trust Factors:

The extension has 2 million users, indicating widespread deployment, likely in educational or corporate environments given the "Enterprise Edition" name. However, the extremely low rating of 1.2 out of 5 stars from nearly 1,000 reviews is a major red flag, suggesting significant user dissatisfaction. The developer appears to be blocksi.net, which positions itself as a web filtering service, providing some legitimacy to the extensive permissions.

Concerns:

This extension has an exceptionally broad and invasive permission set that goes far beyond typical web filtering needs. The combination of webRequest, webRequestBlocking, and all_urls permissions creates a powerful surveillance and control mechanism. The ability to access browsing history, bookmarks, identity information, geolocation, and manage other extensions represents comprehensive system control. The enterprise.deviceAttributes permission suggests corporate deployment capabilities. Most concerning is the dangerous combination of permissions that could intercept, modify, and block all web traffic while accessing sensitive personal data.

Recommendations:

Given the critical risk level, avoid installing this extension on personal devices. If required by an organization, run it in a completely isolated Chrome profile with no personal browsing activity. Be aware that this extension can monitor and control virtually all browser activity. Organizations should carefully evaluate whether such extensive monitoring capabilities align with their privacy policies and employee rights. Consider alternative web filtering solutions with more limited permission sets if possible.

Findings

HIGH
Broad Content Script Injection
This extension can inject scripts into any website. This means it could potentially read sensitive data, modify website content, or steal credentials.
HIGH
Broad Host Permissions
This extension has broad host permissions allowing it to access many or all websites. This could potentially be used to steal sensitive data or track browsing activity.
HIGH
Dangerous Permission Combination: webRequest + webRequestBlocking
This extension can intercept, modify, and block web requests in real-time. This combination could be used to modify sensitive web traffic or steal data.
HIGH
High-Risk Permission: bookmarks
This extension has the bookmarks permission. Can access and modify bookmarks. This could potentially be used maliciously to compromise security or privacy.
HIGH
High-Risk Permission: history
This extension has the history permission. Can access your browsing history. This could potentially be used maliciously to compromise security or privacy.
HIGH
High-Risk Permission: identity
This extension has the identity permission. Can access your identity information. This could potentially be used maliciously to compromise security or privacy.
HIGH
High-Risk Permission: management
This extension has the management permission. Can manage other extensions. This could potentially be used maliciously to compromise security or privacy.
HIGH
High-Risk Permission: tabs
This extension has the tabs permission. Can access browser tab information and manipulate tabs. This could potentially be used maliciously to compromise security or privacy.
HIGH
High-Risk Permission: webNavigation
This extension has the webNavigation permission. Can track your web navigation. This could potentially be used maliciously to compromise security or privacy.
HIGH
High-Risk Permission: webRequest
This extension has the webRequest permission. Can intercept and modify web requests. This could potentially be used maliciously to compromise security or privacy.
HIGH
High-Risk Permission: webRequestBlocking
This extension has the webRequestBlocking permission. Can block and modify web requests in real-time. This could potentially be used maliciously to compromise security or privacy.
MEDIUM
Medium-Risk Permission: activeTab
This extension has the activeTab permission. Can access the active tab when clicking the extension icon.
MEDIUM
Medium-Risk Permission: geolocation
This extension has the geolocation permission. Can access your location.
MEDIUM
Medium-Risk Permission: notifications
This extension has the notifications permission. Can show notifications.
MEDIUM
Medium-Risk Permission: storage
This extension has the storage permission. Can store data locally.
by ✦ Astarte