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98 indicators in this extension

98 indicators
0 versions analysed

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What our analysis found

CastReader — Text to Speech + AI Explain, used by 1,421 people, is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites and can inject scripts into pages. It was last updated in October 2026.

CastReader — Text to Speech + AI Explain

CastReader — Text to Speech + AI Explain Edge extension security report

ID: niidajfbelfcgnkmnpcmdlioclhljaaj

Supported Languages

🇺🇸US English

Extension Info & Metadata

Status
Active
Version
1.2.27
Size
13.60 MB
Rating
5.0/5
Reviews
1
Users
1,421
Type
Extension
Updated
Oct 12, 2026
Category
Accessibility
Price
Paid
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
This publisherTrack record
1extension
All still listed

Publisher Contextual Analysis

Author
CastReader
Country
CN
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Address
曹家渡 延平路69号延平大厦1102 静安区, 上海市 200020 CN
Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
1,421

Screenshots & videos

Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5
Screenshot 6

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.
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
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.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 20% increase: Access to sensitive domains increases potential impact• 10% increase: Early script execution enables pre-emptive content manipulation• 25% increase: Unsafe code evaluation capabilities increase attack surface
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.
Unsafe WebAssembly Execution
Risk Factor
High
This extension's CSP allows "wasm-unsafe-eval".
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.
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.
*://api.castreader.ai/*
Host
Medium
Host permission — access limited to this URL pattern.
*://castreader.ai/*
Host
Medium
Host permission — access limited to this URL pattern.
*://*.cos.accelerate.myqcloud.com/*
Host
Medium
Host permission — access limited to this URL pattern.
*://weread.qq.com/*
Host
Medium
Host permission — access limited to this URL pattern.
*://www.youtube.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.co.uk/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.ca/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.com.au/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.co.jp/*
Host
Medium
Host permission — access limited to this URL pattern.
https://lesen.amazon.de/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.de/*
Host
Medium
Host permission — access limited to this URL pattern.
https://lire.amazon.fr/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.fr/*
Host
Medium
Host permission — access limited to this URL pattern.
https://leggi.amazon.it/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.it/*
Host
Medium
Host permission — access limited to this URL pattern.
https://leer.amazon.es/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.es/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.in/*
Host
Medium
Host permission — access limited to this URL pattern.
https://ler.amazon.com.br/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.com.br/*
Host
Medium
Host permission — access limited to this URL pattern.
https://leer.amazon.com.mx/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.com.mx/*
Host
Medium
Host permission — access limited to this URL pattern.
https://lezen.amazon.nl/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.nl/*
Host
Medium
Host permission — access limited to this URL pattern.
https://read.amazon.cn/*
Host
Medium
Host permission — access limited to this URL pattern.
*://docs.google.com/*
Host
Medium
Host permission — access limited to this URL pattern.
Access to Sensitive Domains
Risk Factor
Medium
This extension requests access to sensitive domains: https://read.amazon.com/*, https://read.amazon.co.uk/*, https://read.amazon.ca/*, https://read.amazon.com.au/*, https://read.amazon.co.jp/*, https://lesen.amazon.de/*, https://read.amazon.de/*, https://lire.amazon.fr/*, https://read.amazon.fr/*, https://leggi.amazon.it/*, https://read.amazon.it/*, https://leer.amazon.es/*, https://read.amazon.es/*, https://read.amazon.in/*, https://ler.amazon.com.br/*, https://read.amazon.com.br/*, https://leer.amazon.com.mx/*, https://read.amazon.com.mx/*, https://lezen.amazon.nl/*, https://read.amazon.nl/*, https://read.amazon.cn/*, *://docs.google.com/*
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.
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.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.

98 indicators in this extension

98 indicators
0 versions 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
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About this extension

Read webpages, PDFs and EPUBs aloud with synced highlights and auto-scroll. Get AI explanations on the page.

Read the publisher’s full description

CastReader is a text-to-speech extension for reading webpages, PDFs and EPUB books aloud in Microsoft Edge. Natural voices, synchronized word and paragraph highlighting, and automatic scrolling help you follow long articles with your eyes and ears together. Use AI Explain when a passage is difficult. It marks key ideas and explains them on the original page, so you can compare the explanation with the source as you read. What you can do - Webpages: read long articles, study materials and technical documentation on the original page. - PDF and EPUB: open files in CastReader’s document reader and follow the text as it is spoken. EPUB files must be DRM-free and contain readable text. - Reading controls: start at a chosen paragraph, adjust the speed, preview voices and save your favorites. 28 reading languages Read in English and 27 other supported languages. The interface and reading tools support 28 languages; the text language is detected automatically and can be corrected. Choose the explanation language separately. Free and Pro voice choices vary by language. Kindle Web compatibility depends on the book edition. Scanned documents require supported OCR and clear source images; OCR coverage differs from reading-language coverage. Free and Pro Start with 20 minutes of reading and 3 AI explanations per day for free. Pro offers more reading time and explanations, faster playback and additional voices. Cloned voices have separate usage allowances. Privacy Reading and explanations use online services to process the necessary content. Product usage and error statistics help improve the service. Privacy details: https://castreader.com/privacy-policy Get started 1. Open a webpage or a compatible Kindle book. 2. Click CastReader or the headphone button. 3. For a PDF or EPUB, choose Read a file and select the document in CastReader’s reader. 4. Choose Read Aloud or Explain. 5. Listen while following the highlighted text.

User reviews

Extension files

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URLs
94
IPv4
1
IPv6
3

URLs

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No URLs found
No IP addresses found

98 indicators in this extension

98 indicators
0 versions 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
1.2.27
Latest
13.60 MBNot scanned—
fbfb36b3130829f2fc7f2507bb20be7577d691884f54a3d37c74bb8221e8734f
1.0.1
3.49 MBNot scanned—
fbfb36b3130829f2fc7f2507bb20be7577d691884f54a3d37c74bb8221e8734f
1.0.2
3.49 MBNot scanned—
fbfb36b3130829f2fc7f2507bb20be7577d691884f54a3d37c74bb8221e8734f
1.0.5
3.54 MBNot scanned—
fbfb36b3130829f2fc7f2507bb20be7577d691884f54a3d37c74bb8221e8734f
1.0.6
3.56 MBNot scanned—
fbfb36b3130829f2fc7f2507bb20be7577d691884f54a3d37c74bb8221e8734f
1.0.7
3.57 MBNot scanned—
fbfb36b3130829f2fc7f2507bb20be7577d691884f54a3d37c74bb8221e8734f
1.1.0
3.57 MBNot scanned—
fbfb36b3130829f2fc7f2507bb20be7577d691884f54a3d37c74bb8221e8734f
1.1.3
3.72 MBNot scanned—
fbfb36b3130829f2fc7f2507bb20be7577d691884f54a3d37c74bb8221e8734f
1.1.6
3.75 MBNot scanned—
fbfb36b3130829f2fc7f2507bb20be7577d691884f54a3d37c74bb8221e8734f
1.1.8
3.80 MBNot scanned—
fbfb36b3130829f2fc7f2507bb20be7577d691884f54a3d37c74bb8221e8734f
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