CVE-2021-4449

ZoomSounds <= 5.96 - Unauthenticated Arbitrary File Upload

9.8 Critical

The ZoomSounds plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'savepng.php' file in versions up to, and including, 5.96. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. CVE-2021-4457 is a duplicate of this.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

5.39%Up 5.3 points since Oct 17, 2024

What each source reports

CVE List Score used 9.8

ZoomSounds <= 5.96 - Unauthenticated Arbitrary File Upload

Record: CVE-2021-4449
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

EUVDEUVD-2021-34634 9.8

Record: EUVD-2021-34634
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-pwf8-74xg-4p7m 9.8

The ZoomSounds plugin for WordPress is vulnerable to arbitrary file uploads due to missing file...

Record: GHSA-pwf8-74xg-4p7m
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

NVD 9.8

Record: CVE-2021-4449
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-434
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Nuclei	ZoomSounds Plugin - Unauthenticated Arbitrary File Upload

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, Nuclei, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-4449 is a critical vulnerability (CVSS 9.8) in Digitalzoomstudio Zoomsounds, published October 16, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.39%, the 92nd percentile. No source names a fixed version.