Tag Assistant CompanionSecurity Analysis

Chromev26.34.2.44MV3February 18, 2026 at 11:53 AM
Use with caution

This extension requests significant permissions. It has 600K+ users, a 4.2 star rating, but review the findings below.

5.0MEDIUM
5.0 MEDIUMRaw: 5.6

This extension shows some risk signals that are common in legitimate extensions but worth reviewing. Check the details below.

Based on 9 permissions including high-risk ones, 48 code findings, 1 dangerous combination.

Trust Signals(3.5/10)

Users
600K
Rating
4.2(209 reviews)

Dangerous Combinations(1)

MEDIUMTab tracking API + external communication

Extension uses tab tracking APIs (onUpdated/query) and communicates with external servers — potential browsing surveillance.

tabs+tabs API usage + external network
Permissions
7.0/10
Code
5.5/10
Combinations
4.0/10
Manifest/CSP
5.3/10

Permissions(9 analyzed)

Code Findings(16 patterns, 48 total)

Libraries(2 detected)

2 libraries detected

Content Security Policy

No CSP Defined(1 issue)
MEDIUM
N/ANo CSP defined

This extension does not define a Content Security Policy. A CSP helps prevent XSS and code injection attacks.

Manifest Analysis(3 findings)

HIGH
web_accessible_resourcesJS files exposed to web pages

JavaScript files are accessible to ALL websites. Any page can load and interact with these scripts, enabling web→extension attacks.

MEDIUM
web_accessible_resources.matchesOverly broad match patterns

Web-accessible resources use <all_urls> or wildcard patterns, exposing resources to every website.

LOW
externally_connectableExternal messaging enabled

Extension accepts messages from 3 external pattern(s). Verify these are trusted origins.

External Domains(20)

*.google.comangular.devangular.ioautopush-conversiontracking-pa-googleapis.sandbox.google.comautopush-people-pa-googleapis.sandbox.google.comchromewebstore.google.comconversiontracking-pa.clients6.google.comlocalhost.corp.google.comlodash.comnpms.ioopenjsf.orgpeople-pa.clients6.google.compolymer.github.iosupport.google.comsupporttagging-autopush.sandbox.google.comsupporttagging-staging.sandbox.google.comtagassistant.google.comtagmanager.google.comunderscorejs.orgwww.apache.org

Indicators of Compromise

2 indicators of compromise found

File Statistics

62
Total Files
14
JS Files
630.9 KB
Total Size

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