Is Gmail Snippets by cloudHQ safe?

Medium risk

Gmail Snippets sends every signed-in Google account email to cloudHQ's servers each time Gmail loads.

When Gmail opens, the extension checks the mail.google.com account switcher for up to 21 signed-in accounts and collects their email addresses. It then posts that list, with the active address, to cloudHQ before any login or consent dialog appears. The check repeats when the stored result is older than two weeks.

Strong link to a flagged operator: 3 of the 17 other listings from the same operator are rated high or critical for malicious behaviour. Flagged: Export Emails to Sheets by cloudHQ (high), Email Signature Generator by cloudHQ (high), Mobile Text Alerts (high).

cloudHQv1.0.1.8Chrome Web Store
49Risk
Who publishes it

cloudHQ LLC - 17 other listings from the same operator, 8 of them carrying a finding

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

Publisher
cloudHQ
Declared legal entity
cloudHQ LLC
Registered address
2247 29th Ave, San Francisco, CA 94116-1738, US
Registered contact
cloudHQ LLC
Website
support.cloudhq.net/category/browser/gmail-snippets/

Same store account

17 other listings published from this account, 250k+ users between them. 8 of them carry a finding.

Export Emails to Sheets by cloudHQ50k+HighConversation Thread Reversal for Gmail™ by cloudHQ40k+MediumGmail Button by cloudHQ30k+MediumMobile Text Alerts20k+HighEmail Signature Generator by cloudHQ20k+HighFormatted Email Subject Lines by cloudHQ10k+Medium11 more listings in the relationship graph, on paid plans →

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

Publishers can request a review.

Findings

Gmail Snippets sends all signed-in Google account emails to cloudhq.net

Code analysis shows the extension fetches Gmail account-switcher pages for up to 21 sessions, extracts each email address, and POSTs the list to www.cloudhq.net before any sign-in step.

Severity
High unwanted
Type
Unexpected
CWE
CWE-359
Source
Static analysis
What actually happens
You did this

You open Gmail while signed in to one or more Google accounts.

The extension did this

The extension requests each account's switcher page and sends every email address found to cloudhq.net.

This occurs before any login or consent dialog.

Body of the POST to www.cloudhq.net/main_pre_user/check
  • email
    jane.doe@gmail.com

    The active Gmail address.

  • email_switcher_list
    ["jane.doe@gmail.com","jane@acme-corp.com"]

    Every signed-in Google account address found.

  • email_or_login
    jane.doe@gmail.com

    Same active address, repeated.

  • chrome_extension_name
    gmail_snippets

    Which cloudHQ feature sent it.

  • switch_login
    1

    Fixed flag set to 1.

The code that does this

Account enumeration and upload in content.js

Readable version

fn_pre_user_check

deobfuscated/content.js:56091
      fn_pre_user_check = function(e) {        var t = this;        try {          var n = t.g_email_or_login + t.g_cloudHQ_feature_name + "_pre_check_obj",            r = ((new Date).getTime(), {              value: "true",              timestamp: (new Date).getTime()            }),            i = {};          i[n] = r, chrome.storage.local.get(n, (function(r) {            if (!r || !r[n] || !r[n].timestamp || r[n].timestamp < t.g_two_weeks_ago_timestamp) try {              t.fn_get_switcher_account_emails((function() {                t.fn_ajax({                  type: "POST",                  url: t.g_server_url + "main_pre_user/check",                  dataType: "json",                  data: {                    email: t.g_email_or_login,                    email_switcher_list: t.g_switcher_account_emails,                    email_or_login: t.g_email_or_login,                    chrome_extension_name: t.g_cloudHQ_feature_name,                    switch_login: "1"                  },                  complete: function(e, t) {                    if (-1 === ["error", "timeout", "abort"].indexOf(t)) try {                      chrome.storage.local.set(i, (function() {}))                    } catch (e) {}                  }                })              }), e)            } catch (e) {              console.log("e:", e)            }

fn_get_switcher_account_emails

deobfuscated/content.js:56026
        if (r.g_switcher_account_emails_index > r.g_switcher_account_emails_max_tries) return r.g_email_or_login && -1 == r.g_switcher_account_emails.indexOf(r.g_email_or_login.toLowerCase()) && r.g_switcher_account_emails.push(r.g_email_or_login.toLowerCase()), void e();        try {          r.g_switcher_account_emails_index++;          var i = "https://mail.google.com/mail/u/" + r.g_switcher_account_emails_index + "/?sw=2";// ... response handler, see below            }          })) : fetch(i, {            method: "GET",
Destinations in this flow
    • mail.google.com

    Queried at /mail/u/0 to /mail/u/20 to read each signed-in account address.

    • www.cloudhq.net

    Receives the address list via the background PROXY_AJAX relay, which only permits cloudhq.net URLs.

Observation

Static analysis finding. This behaviour was identified by reading the shipped extension code and has not yet been reproduced in a live run. The trigger conditions and the exact data sent are read from the code, not from an observed capture.

What it can do

Permissions this extension asks for, as declared in version 1.0.1.8. 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 mail.google.com

    https://mail.google.com/

  • Read and change your data on inbox.google.com

    https://inbox.google.com/

  • Read and change your data on www.cloudhq.net

    https://www.cloudhq.net/

  • Run its own code inside the pages you visit

    scripting

  • Store data in your browser

    storage

  • Keep running in the background while your browser is open

    background

Where it sends data

Destinations our analysis observed Gmail Snippets by cloudHQ 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.

  • www.cloudhq.netwidely used

    Gmail Snippets by cloudHQ sends data to www.cloudhq.net. A widely used service: 79 other extensions we have analysed send data here.

Updated 15 October 2026aaogcnhlejoiamoopmnieonhbgajndlc