JS Vulnerability Detector

JavaSript Vulnerability Detector is a result of my Master Thesis at Brno University of Technology, Faculty of Information…

What is JS Vulnerability Detector?

JS Vulnerability Detector is a Chrome extension developed by randysekvojta, and its main feature is "JavaSript Vulnerability Detector is a result of my Master Thesis at Brno University of Technology, Faculty of Information…".

Extension Screenshots

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Download JS Vulnerability Detector Extension CRX File

Download JS Vulnerability Detector extension files in crx format, manually install Chrome extensions in the browser, or share the crx files with friends to easily install Chrome extensions.

Extension Usage Instructions

                        JavaSript Vulnerability Detector is a result of my Master Thesis at Brno University of Technology, Faculty of Information technology, graduation year 2022. The extension aims to add security features to the end-users of various websites containing vulnerable JavaScript library code. The principle of extension is following:

1. After page loads the extension scans all the JavaScript contained on the page and sends it to background script for processing.
2. If the script contains a known vulnerability (initial version focuses mostly on jQuery),  it is tracked and shown in the extension popup. After detection the vulnerable script can be blocked, patched or left as is and only tracked.

All data is stored locally and can be cleared by a "Clear" button in the extension popup. There is no server communication going on, no data leaves the browser.

Extension runs in 4 modes:
1. disabled - no action
2. analyze - standard analysis only mode - no patching or blocking of vulnerable scripts
3. bloc - vulnerable scripts are removed from website
4. repair - experimental, vulnerable scripts are patched if possible

Currently it can detect vulnerable versions of jQuery (all up to 3.5.0) and repair them by updating them in runtime to 3.5.0 and couple more (around 30, including some of lodash, remarkjs, axios, handlebars and other vulnerabilities).

Source codes are open, available at https://github.com/xrandy00/mt_2022                    

Extension Basic Information

Name JS Vulnerability Detector JS Vulnerability Detector
ID bmcojnncgfmglejiinbdnahmkmbgifhk
Official URL https://chromewebstore.google.com/detail/js-vulnerability-detector/bmcojnncgfmglejiinbdnahmkmbgifhk
Description JavaSript Vulnerability Detector is a result of my Master Thesis at Brno University of Technology, Faculty of Information…
File Size 459 KB
Installation Count 246
Current Version 1.0.0
Last Updated 2022-12-13
Publish Date 2022-04-19
Rating 5.00/5 Total 1 Ratings
Developer randysekvojta
Email [email protected]
Payment Type free
Extension Website https://github.com/xrandy00/mt_2022
Help Page URL https://github.com/xrandy00/mt_2022
Supported Languages en
manifest.json
{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "__MSG_appName__",
    "short_name": "__MSG_appShortName__",
    "description": "__MSG_appDescription__",
    "homepage_url": "http:\/\/chrome.google.com\/webstore",
    "version": "1.0.0",
    "version_name": "1.0.0",
    "manifest_version": 3,
    "default_locale": "en",
    "minimum_chrome_version": "88",
    "action": {
        "default_icon": "assets\/icon.png",
        "default_popup": "popup.html",
        "default_title": "__MSG_appName__"
    },
    "icons": {
        "144": "assets\/icon.png"
    },
    "host_permissions": [
        ""
    ],
    "permissions": [
        "storage"
    ],
    "web_accessible_resources": [
        {
            "resources": [
                "evaluate.js",
                "popup.js"
            ],
            "matches": [
                ""
            ]
        }
    ],
    "content_scripts": [
        {
            "matches": [
                ""
            ],
            "run_at": "document_start",
            "all_frames": true,
            "js": [
                "content_script.js"
            ]
        }
    ],
    "background": {
        "service_worker": "background.js"
    }
}