SECURITY REPORT · EXTENSHI SCAN
Ultra Video Downloader: HLS, DASH & MP4
Chrome extension·by kojakEugenio
0
/ 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
Riskier ←→ Safer
Ranked against 369,936 extensions
In Productivity
14%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 177,133 productivity extensions
Findings
96
median 16Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
15
median 3Declared in manifest
Active users
1
median 14vs category median
Findings breakdown
Automated security signal · 96 distinct issues across 6 severities
96
distinct issues
detected
detected
Scanners reported 129 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical22%
High66%
Needs Review00%
Medium8386%
Low55%
Info00%
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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