focus-visible-polyfill-lite

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: amazon-inspector (5225b5a8636a589f9b90272ad04c3f4104670a23d5c24b45f6aeaa757a4f2a2b)
The package is advertised as a focus-visible polyfill but ships thunderboltRegistry.js, which impersonates Wix thunderbolt internal registry modules (thunderboltRegistry, siteAssetsRegistry, documentManagementRegistry, editorRegistry, corvidRegistry, and others) via a Proxy-backed export stub. When the module is required, an IIFE at the top of the file uses child_process.execSync to run host reconnaissance commands (id, whoami, uname -a, ifconfig/ip addr, cat /etc/hosts) and sends the command output along with a beacon (Node version, platform, pid) via plain-HTTP GET requests to a hardcoded attacker-controlled endpoint at http://dxpoc.gt.tc/callback.php/ef9ea0e191006f3cc6670720c99c26f3. The package self-labels the beacon as 'rce-poc'. The shape is a dependency-confusion / typosquat payload: a benign-sounding public package shadows Wix-internal registry names so that a build pipeline resolving these names from the public registry executes the reconnaissance payload with the installer's privileges on module load.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/7a1f1382a84618fabc1c45e8b61e9c9cea6ea33f/osv/malicious/npm/focus-visible-polyfill-lite/MAL-2026-17491.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/7a1f1382a84618fabc1c45e8b61e9c9cea6ea33f/osv/malicious/npm/focus-visible-polyfill-lite/MAL-2026-17491.json
- https://www.npmjs.com/package/focus-visible-polyfill-lite/v/1.0.0
- https://github.com/advisories/GHSA-5h59-r5m3-rf9w

Compromised versions (1)

• = 1.0.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.