CVE-2021-39316

HIGH EXPLOITED NUCLEI

Zoomsounds <= 6.45 - Unauthenticated Arbitrary File Read via dzsap_download Action

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-39316 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit from researchers including Uriel Yochpaz. A Nuclei detection template is also available.

AI-analyzed exploit summary This exploit demonstrates an unauthenticated arbitrary file read vulnerability in WordPress Plugin DZS Zoomsounds via directory traversal in the 'link' parameter of the 'dzsap_download' action. The PoC uses a crafted HTTP request to read '/etc/passwd'.

Description

The Zoomsounds plugin <= 6.45 for WordPress allows arbitrary files, including sensitive configuration files such as wp-config.php, to be downloaded via the `dzsap_download` action using directory traversal in the `link` parameter.

Exploits (1)

exploitdb WORKING POC
by Uriel Yochpaz · textwebappsphp
https://www.exploit-db.com/exploits/50564

This exploit demonstrates an unauthenticated arbitrary file read vulnerability in WordPress Plugin DZS Zoomsounds via directory traversal in the 'link' parameter of the 'dzsap_download' action. The PoC uses a crafted HTTP request to read '/etc/passwd'.

Classification
Working Poc 100%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: WordPress Plugin DZS Zoomsounds versions 1.10 to 6.45
No auth needed
Prerequisites: WordPress site with vulnerable DZS Zoomsounds plugin installed
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

WordPress DZS Zoomsounds <=6.50 - Local File Inclusion
HIGHby daffainfo

References (2)

Core 2
Core References

Scores

CVSS v3 7.5
EPSS 0.6654
EPSS Percentile 99.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

VulnCheck KEV 2023-11-22
CWE
CWE-22 CWE-552
Status published
Products (1)
digitalzoomstudio/zoomsounds < 6.45
Published Aug 31, 2021
Tracked Since Feb 18, 2026