Is OWASP Penetration Testing Kit safe?

Low risk

OWASP Penetration Testing Kit accepts page bridge messages that send saved DAST scan results to the configured PTK portal.

When a scan result is present and an API key is configured, a webpage message with the PTK bridge marker is forwarded from the content script to the background save-scan handler. The background code loads current or stored DAST scan data, compresses it, and posts it with bearer authorization to the PTK portal; the scan payload can include URLs, headers, and DOM content.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

pentestkit.co.ukv9.9.9Chrome Web Store
21Risk
Who publishes it

pentestkit.co.uk - no other listings under this identity, 2 shared hostnames

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
pentestkit.co.uk

Shared hosts - 2 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

portswigger.net
Also called by 3 other listings, including Login Recorder for Burp Suite
exploit-db.com
Also called by 5 other listings, including Hack-Tools

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 9.9.8. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to. The current listed version is 9.9.9, which we have not unpacked yet.

  • Read and change your data on every site you visit

    <all_urls> and 1 more

  • Act on the current tab, but only after you click the extension

    activeTab

  • Schedule its own background tasks

    alarms

  • Read and change cookies, including the ones that keep you signed in

    cookies

  • Show you desktop notifications

    notifications

  • Store data in your browser

    storage

  • Store an unlimited amount of data in your browser

    unlimitedStorage

  • See the address and title of every tab you have open

    tabs

  • See every page you navigate to, as you navigate to it

    webNavigation

  • Watch every request your browser makes

    webRequest

  • Keep running in the background while your browser is open

    background

  • Run hidden pages in the background

    offscreen

  • Attach to pages with the browser's debugger, which can read and rewrite anything on them

    debugger

  • Run its own code inside the pages you visit

    scripting

  • Block and redirect the requests your browser makes

    declarativeNetRequest

declarativeNetRequestWithHostAccess

Where it sends data

Destinations our analysis observed OWASP PTK contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • pentestkit.pro

    OWASP PTK sends data to pentestkit.pro. No other extension we have analysed sends data here.

Updated 30 September 2026ojkchikaholjmcnefhjlbohackpeeknd