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Klever Wallet

Version 2.22.2.1 View in Chrome Web Store

Last scanned: about 16 hours ago

Extension Details

Developer: klever.io

Rating: 4.2 ★ (50 ratings)

Users: 5,000

Context-Aware Verdict

CRITICAL

Overall Risk

Based on 8 total findings, including 4 high-risk findings.

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

High-Risk Permission: clipboardRead

This extension has the clipboardRead permission. Can read clipboard content. This could potentially be used maliciously to compromise security or privacy.

HIGH

Unsafe WebAssembly Execution

This extension's Content Security Policy allows 'wasm-unsafe-eval', which permits potentially dangerous WebAssembly code execution. This could be used to hide malicious code or perform CPU-intensive operations.

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: 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.

MEDIUM

Medium-Risk Permission: unlimitedStorage

This extension has the unlimitedStorage permission. Can store unlimited data locally.

Security Analysis Details

Required Permissions:

activeTab
storage
unlimitedStorage
notifications
declarativeNetRequestWithHostAccess
declarativeNetRequestFeedback
clipboardRead
sidePanel

Host Permissions:

http://*/*
https://*/*
*://*/*

Content Security Policy:

extension_pages: script-src 'self' 'wasm-unsafe-eval' ; object-src 'self';

Embedded URLs (1250 total):

https://apis.klever.io/k5-data/v1/content/tokens	https://node.mainnet.klever.org
https://node.testnet.klever.org	https://api.trongrid.io
https://api.shasta.trongrid.io	https://bitcoin.explorer.klever.io
https://testnet.manu.backend.hamburg	https://compatible-fragrant-hexagon.quiknode.pro/475cebf19c521f4dffe78819755cf20cd38458a1/
https://ethereum-goerli.publicnode.com	https://moonbeam.node.klever.io
https://api.mainnet.solana.com	https://api.testnet.solana.com
https://rpc.ankr.com/chiliz	https://ic0.app
https://fullnode.mainnet.sui.io:443	https://binance.llamarpc.com
https://api.mainnet.klever.org	https://api.testnet.klever.org
https://stake.klever.io	https://lxp32.github.io/docs/a-simple-example-crc32-calculation/
https://caniuse.com/mdn-javascript_builtins_uint8array_fromhex	https://bugzil.la/1681809
https://caniuse.com/mdn-javascript_builtins_dataview_setbiguint64	https://issues.chromium.org/issues/42212588
https://datatracker.ietf.org/doc/html/rfc4634	https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf
https://eprint.iacr.org/2010/548.pdf	https://en.wikipedia.org/wiki/Base64#URL_applications
https://github.com/beatgammit/base64-js/issues/42	https://github.com/dfinity/candid/blob/119703ba342d2fef6ab4972d2541b9fe36ae8e36/spec/Candid.md
https://feross.org/opensource	https://feross.org
https://bugzilla.mozilla.org/show_bug.cgi?id=695438	https://github.com/feross/buffer/pull/148
https://github.com/feross/buffer/issues/154	http://stackoverflow.com/a/22747272/680742
https://github.com/feross/buffer/issues/166	https://github.com/feross/buffer/issues/219
https://caml.inria.fr/pub/papers/garrigue-polymorphic_variants-ml98.pdf	https://sdk.dfinity.org/docs/interface-spec/#reject-codes
https://sdk.dfinity.org/docs/interface-spec/index.html#hash-of-map	https://brilliant.org/wiki/extended-euclidean-algorithm/
https://eprint.iacr.org/2012/685.pdf	https://research.kudelskisecurity.com/2020/07/28/the-definitive-guide-to-modulo-bias-and-how-to-avoid-it/
https://csrc.nist.gov/publications/detail/fips/186/5/final	https://www.rfc-editor.org/rfc/rfc9380#section-5
https://github.com/paulmillr/noble-secp256k1/blob/47cb1669b6e506ad66b35fe7d76132ae97465da2/index.ts#L502-L541	https://eprint.iacr.org/2024/750.pdf
https://tches.iacr.org/index.php/TCHES/article/view/10287	https://www.rfc-editor.org/rfc/rfc9380#section-5.3.1
https://www.rfc-editor.org/rfc/rfc9380#section-5.3.3	https://www.rfc-editor.org/rfc/rfc9380#section-5.3.2
https://www.rfc-editor.org/rfc/rfc9380#section-5.2	https://www.rfc-editor.org/errata/eid8393
https://www.typescriptlang.org/docs/handbook/release-notes/typescript-2-7.html#unique-symbol	https://letsencrypt.org/docs/a-warm-welcome-to-asn1-and-der/
https://luca.ntop.org/Teaching/Appunti/asn1.html	https://crypto.stackexchange.com/a/57734
https://eprint.iacr.org/2015/1060	https://www.rfc-editor.org/rfc/rfc9380#section-6.6.2
https://tches.iacr.org/index.php/TCHES/article/view/7337/6509.	https://www.secg.org/sec1-v2.pdf:
https://ethresear.ch/t/fast-verification-of-multiple-bls-signatures/5407	https://eprint.iacr.org/2009/565.pdf
https://eprint.iacr.org/2010/354.pdf	https://hal.science/hal-01534101/file/main.pdf
https://datatracker.ietf.org/doc/html/draft-irtf-cfrg-pairing-friendly-curves-11	https://datatracker.ietf.org/doc/draft-irtf-cfrg-bls-signature/
https://tools.ietf.org/html/draft-irtf-cfrg-pairing-friendly-curves-11	https://github.com/hyperledger/aries-framework-go/issues/2247
https://www.rfc-editor.org/rfc/rfc9380#section-8.8.2	https://eprint.iacr.org/2021/1130.pdf
https://eprint.iacr.org/2019/403	https://datatracker.ietf.org/doc/html/rfc9380#name-clearing-the-cofactor
https://datatracker.ietf.org/doc/html/rfc9380#name-cofactor-clearing-for-bls12	https://eprint.iacr.org/2019/814.pdf
https://eprint.iacr.org/2017/419.pdf	https://www.rfc-editor.org/rfc/rfc9380#appendix-E.3
https://en.wikipedia.org/wiki/Twisted_Edwards_curve#Extended_coordinates	https://hyperelliptic.org/EFD/g1p/auto-twisted-extended.html#doubling-dbl-2008-hwcd

Page 1 of 16

Raw Manifest

{
  "name": "Klever Wallet",
  "icons": {
    "16": "icons/logo16.png",
    "48": "icons/logo48.png",
    "128": "icons/logo128.png"
  },
  "action": {
    "icons": {
      "16": "icons/logo16.png",
      "48": "icons/logo48.png",
      "128": "icons/logo128.png"
    },
    "default_popup": "index.html",
    "default_title": "Klever Wallet"
  },
  "version": "2.22.2.1",
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "mac": "Command+Shift+K",
        "linux": "Ctrl+Shift+K",
        "windows": "Ctrl+Shift+K",
        "chromeos": "Ctrl+Shift+K"
      }
    }
  },
  "background": {
    "type": "module",
    "service_worker": "service-worker-loader.js"
  },
  "side_panel": {
    "default_path": "index.html"
  },
  "update_url": "https://clients2.google.com/service/update2/crx",
  "description": "Klever wallet inside your browser",
  "permissions": [
    "activeTab",
    "storage",
    "unlimitedStorage",
    "notifications",
    "declarativeNetRequestWithHostAccess",
    "declarativeNetRequestFeedback",
    "clipboardRead",
    "sidePanel"
  ],
  "content_scripts": [
    {
      "js": [
        "assets/content.js-loader-D98CLIxN.js"
      ],
      "run_at": "document_start",
      "matches": [
        "*://*/*"
      ],
      "all_frames": true,
      "exclude_matches": [
        "*://*.google.com/*",
        "*://*.twitch.tv/*"
      ]
    }
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*",
    "*://*/*"
  ],
  "manifest_version": 3,
  "minimum_chrome_version": "103",
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval' ; object-src 'self';"
  },
  "web_accessible_resources": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "resources": [
        "public/bridge/inject.js"
      ],
      "use_dynamic_url": false
    },
    {
      "matches": [
        "*://*/*"
      ],
      "resources": [
        "assets/_sentry-release-injection-file-B4V6BPIX.js",
        "assets/content.js-Cml-mynW.js"
      ],
      "use_dynamic_url": false
    }
  ]
}

by ✦ Astarte

Klever Wallet

Extension Details

Context-Aware Verdict

Findings

Security Analysis Details

Required Permissions:

Host Permissions:

Content Security Policy:

Embedded URLs (1250 total):

Raw Manifest

Detections

Manifest Findings