# CVE-2022-4428: support_uri validation missing in WARP client for Windows

CVE-2022-4428 has no fix on record yet for 1 affected product. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-4428
- Priority: High
- CVSS: 8.0
- EPSS: 0.0071
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 11, 2023
- Weakness: CWE-20: Improper Input Validation
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-4428

## Description

support_uri parameter in the WARP client local settings file (mdm.xml) lacked proper validation which allowed for privilege escalation and launching an arbitrary executable on the local machine upon clicking on the "Send feedback" option. An attacker with access to the local file system could use a crafted XML config file pointing to a malicious file or set a local path to the executable using Cloudflare Zero Trust Dashboard (for Zero Trust enrolled clients).

## Where it's fixed

No fix is on record.

## No fix yet

| Platform | Product | Status |
|---|---|---|
| Windows apps | Cloudflare WARP | no-fix |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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