---
id: CVE-2021-36668
title: >-
  URL injection in Driva inSync 6.9.0 for MacOS, allows attackers to force a
  visit to an arbitrary url via the port parameter to the Electron App.
summary: >-
  URL injection in Driva inSync 6.9.0 for MacOS, allows attackers to force a
  visit to an arbitrary url via the port parameter to the Electron App.
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-74
vendor: druva
product: insync_client
affected:
  - insync_client < 5.9.3
  - insync_client < 7.0.1
patched:
  - insync_client 7.0.1
published: '2022-07-12'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-36668'
references:
  - url: >-
      https://docs.druva.com/Knowledge_Base/Security_Update/Security_Advisory_for_inSync_Client_7.0.1_and_before
    label: cve@mitre.org
  - url: 'https://imhotepisinvisible.com/druva-lpe/'
    label: cve@mitre.org
  - url: 'http://druva.com'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://docs.druva.com/Knowledge_Base/Security_Update/Security_Advisory_for_inSync_Client_7.0.1_and_before
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://imhotepisinvisible.com/druva-lpe/'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00577
epssPercentile: 0.46277
ingestedAt: '2026-07-06T17:03:24.843Z'
---

## Overview

URL injection in Driva inSync 6.9.0 for MacOS, allows attackers to force a visit to an arbitrary url via the port parameter to the Electron App.

## Affected

- `insync_client < 5.9.3`
- `insync_client < 7.0.1`

## Remediation

Upgrade past the affected range:

- `insync_client 7.0.1`