CVE-2021-4449

Name: CVE-2021-4449
Creator: NVD / NIST
Published: 2024-10-16T07:15:11.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 5.29%

Last modified Jun 17, 2026

CVE-2021-4449 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 5.29% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

5.29%

91.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Digitalzoomstudio	Zoomsounds	<= 5.96

References

https://codecanyon.net/item/zoomsounds-wordpress-wave-audio-player-with-playlist/6181433Product
https://github.com/0xAgun/Arbitrary-File-Upload-ZoomSoundsThird Party Advisory
https://ithemes.com/blog/wordpress-vulnerability-report-june-2021-part-5/#ib-toc-anchor-2Third Party Advisory
https://sploitus.com/exploit?id=WPEX-ID:07259A61-8BA9-4DD0-8D52-CC1DF389C0ADExploit
https://wpscan.com/vulnerability/07259a61-8ba9-4dd0-8d52-cc1df389c0adExploit, Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/262e3bb3-bc83-4d0b-8056-9f94ec141b8f?source=cveThird Party Advisory

Timeline

Published: Oct 16, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4449?

How severe is CVE-2021-4449?

CVE-2021-4449 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 5.29% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4449?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4449?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST