CVE-2021-39316
HighExploitedPublic exploitZoomSounds - WordPress Wave Audio Player with Playlist <= 6.45 - Directory Traversal
Published Dec 6, 2021 · Updated May 5, 2025 · Also known as TR-21-0968, cffeac2c-8ca3-44f7-b54c-3c23b7a849a3
Key Facts
Patch immediately- CVE-2021-39316 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Zoomsounds (Digitalzoomstudio), dzs-zoomsounds (wordpress-plugin), ZoomSounds - WordPress Wave Audio Player with Playlist.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Aug 31, 2021. Public exploit code is available.
- EPSS estimates a 66% probability of exploitation in the next 30 days.
- Fixed versions are available, including Zoomsounds <=6.45, dzs-zoomsounds 6.50, Zoomsounds 6.45.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
66%
Higher than 99.2% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2021-39316 brief as a PDF
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Nov 22, 2023 | n/a | Not reported |
| CIRCL KEV | Aug 31, 2021 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ZoomsoundsDigitalzoomstudio | See advisory | 6.45 |
| dzs-zoomsoundswordpress-plugin | See advisory | 6.50 |
| ZoomSounds - WordPress Wave Audio Player with Playlist | >= 6.45 | n/a |
Patched Releases
Zoomsounds
<=6.45
dzs-zoomsounds
6.50
Timeline
Added to CIRCL KEV
Aug 31, 2021
Publicly disclosed
Dec 6, 2021
Added to Industry KEV feed
Nov 22, 2023
Last updated
May 5, 2025
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-552 Files or Directories Accessible to External Parties
References
- advisoryhttps://cxsecurity.com/issue/WLB-2021120012
- advisoryhttps://cxsecurity.com/issue/WLB-2021120019
- advisoryhttps://cxsecurity.com/issue/WLB-2021120021
- advisoryhttps://digitalzoomstudio.net/docs/wpzoomsounds/
- advisoryhttps://soliloquywp.com/
FAQ
Common Questions.
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.
Affected: Zoomsounds (Digitalzoomstudio); dzs-zoomsounds (wordpress-plugin); ZoomSounds - WordPress Wave Audio Player with Playlist versions >= 6.45. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Aug 31, 2021.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Zoomsounds <=6.45, dzs-zoomsounds 6.50, Zoomsounds 6.45.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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