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SECURITY REPORT · EXTENSHI SCAN

Ultra Video Downloader: HLS, DASH & MP4

Chrome extension·by kojakEugenio
67
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.

Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue

How it ranks

Ultra Video Downloader: HLS, DASH & MP4's safety score vs every other extension we've scanned
Globally
11%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 397,240 extensions
In Productivity
14%of productivity extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 191,259 productivity extensions
Findings
96
median 16Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
15
median 3Declared in manifest
Active users
326
median 14vs category median

Findings breakdown

Automated security signal · 96 distinct issues across 6 severities
96
distinct issues
detected
Scanners reported 129 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

5 risky permissions of 15 total
1 critical permission require attention
This extension requests 15 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
Critical
Communicate with desktop apps

Can exchange messages with applications installed on your computer

High
Manage downloads

Can initiate downloads and access your download history

High
Observe web requests

Can monitor all network requests made by the browser

High
View open tabs

Can see URLs and titles of all open tabs

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Medium
Show notifications

Can display desktop notifications outside the browser

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Medium
Open downloaded files

Can open files that have been downloaded

Low
Create offscreen documents

Can create hidden documents for background processing tasks

Low
Access favicons

Can retrieve website favicon images

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Scan performed by extenshi.io · Aug 23, 2026
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