Is CPH Submit safe?

Clean risk

CPH Submit polls a local companion app and submits saved source code to programming contest sites.

CPH Submit checks a local service every few seconds for pending submissions that include source code, language, problem, and URL details. When it receives one, it opens Codeforces, CSES, or Maang/AlgoZenith pages, fills the submission form or editor with the code, and clicks or submits the form.

Divyanshu Agrawalv1.9.0Firefox Add-ons
0Risk
Who publishes it

Divyanshu Agrawal - no other listings under this identity

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

Publisher
Divyanshu Agrawal

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 1.9.0. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on localhost

    *://localhost/*

  • Read and change your data on cses.fi

    https://cses.fi/*

  • Read and change your data on codeforces.com

    *://codeforces.com/*

  • Read and change your data on maang.in

    *://maang.in/*

  • Run its own code inside the pages you visit

    scripting

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

    webNavigation

Where it sends data

Destinations our analysis observed CPH Submit 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.

  • codeforces.com

    CPH Submit sends data to codeforces.com. 2 other extensions we have analysed send data here.

  • cses.fi

    CPH Submit sends data to cses.fi. No other extension we have analysed sends data here.

  • maang.in

    CPH Submit sends data to maang.in. No other extension we have analysed sends data here.

  • localhost:27121

    CPH Submit sends data to localhost:27121. Named as a recipient in this extension's own analysis.

Updated 30 September 2026amo-2657641