What is CVE-2021-4457?

CVE-2021-4457 is a critical-severity vulnerability in Digitalzoomstudio Zoomsounds, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2025-06-25.

How severe is CVE-2021-4457?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Arbitrary file upload in Digitalzoomstudio Zoomsounds

CVE-2021-4457

The ZoomSounds plugin before 6.05 contains a PHP file allowing unauthenticated users to upload an arbitrary file anywhere on the web server.

Vulnerability class: Unrestricted File Upload

EPSS: 0.004 (30.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Digitalzoomstudio Zoomsounds
Unknown Zoomsounds — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

contact@wpscan.com (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2021-4457?: CVE-2021-4457 is a critical-severity vulnerability in Digitalzoomstudio Zoomsounds, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2025-06-25.
How severe is CVE-2021-4457?: Critical severity. CVSS v3 base score is 9.1 out of 10.