Server-Side Request Forgery (SSRF)Weakness · CWE-918

CVE-2026-39647

MEDIUM · 5.4 CVSS v3.1 Published 2026-04-08
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
63/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Server-Side Request Forgery (SSRF) vulnerability in sonaar MP3 Audio Player for Music, Radio & Podcast by Sonaar mp3-music-player-by-sonaar allows Server Side Request Forgery.This issue affects MP3 Audio Player for Music, Radio & Podcast by Sonaar: from n/a through <= 5.11.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Server-Side Request Forgery (SSRF) vulnerability in the Sonar MP3 Audio Player plugin allows attackers to induce the server to make arbitrary HTTP requests to internal or external resources, potentially exposing internal services or bypassing network segmentation.

MitigationUpdate to the latest version of the plugin if a patch is available; otherwise, implement input validation on URL parameters and apply network segmentation to restrict outbound server connections.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Locate the Sonaar MP3 Audio Player plugin directory
    Inspect the WordPress plugins folder at wp-content/plugins/ for a directory named 'sonaar-music-player' or similar (the plugin may also be under 'sonaar-mp3-player' or 'sonaar-audio-player').
    Affected if The plugin directory exists in the WordPress installation.
  2. Identify the plugin version
    Open the main plugin PHP file (typically sonaar-music-player.php or similar in the plugin root) and locate the version comment or the version defined in the plugin header.
    Affected if The reported version is 5.11 or lower.
  3. Locate the vulnerable URL-fetching function
    Search the plugin source code for functions that perform server-side HTTP requests (such as wp_remote_get, wp_remote_post, file_get_contents, or curl) and accept a URL parameter from user input (typically via $_GET, $_POST, or $_REQUEST).
    Affected if The plugin contains code that takes a user-supplied URL and makes a server-side request without proper validation.
  4. Verify the vulnerable endpoint is accessible
    Check if the URL-fetching functionality is hooked to a WordPress AJAX action (wp_ajax_*) or an admin page that can be reached without authentication (wp_ajax_nopriv_*).
    Affected if The vulnerable URL-fetching endpoint is reachable without requiring authentication or specific user privileges.
  5. Test for SSRF behavior (if authorized)
    If you have explicit authorization, send a crafted request to the identified endpoint with an internal URL (such as http://127.0.0.1:port or http://localhost) as the URL parameter and observe whether the server attempts the connection.
    Affected if The server accepts arbitrary URLs in the parameter and attempts to fetch them server-side.

You are affected if the Sonaar MP3 Audio Player plugin is installed with version 5.11 or lower and contains an accessible URL-fetching endpoint that accepts user-supplied URLs without validation.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update to the latest version of the plugin if a patch is available; otherwise, implement input validation on URL parameters and apply network segmentation to restrict outbound server connections.

Recommended fix Low confidence

Latest available version of MP3 Audio Player for Music, Radio & Podcast by Sonaar (version > 5.11)

  1. Log in to the WordPress admin dashboard
  2. Navigate to Plugins > Installed Plugins
  3. Find 'MP3 Audio Player for Music, Radio & Podcast by Sonaar'
  4. Click 'Update Now' if an update is available, or download the latest version from wordpress.org and upload it
  5. Verify the plugin was updated to a version newer than 5.11
  6. Test that the audio player functionality works correctly after the update

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2026-39647 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-39647 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data