CVE-2026-39647 sonaar CVE debrief

Who should care

Users of the MP3 Audio Player for Music, Radio & Podcast by Sonaar plugin, particularly those with versions 5.11 or earlier, should be aware of this SSRF vulnerability and take necessary precautions. This includes updating the plugin to a version beyond 5.11 and implementing additional security measures to monitor and restrict server-side requests.

Technical summary

The MP3 Audio Player for Music, Radio & Podcast by Sonaar plugin, versions from n/a through 5.11, is vulnerable to Server-Side Request Forgery (SSRF). This vulnerability, identified as CVE-2026-39647, has a CVSS score of 5.4 and a severity rating of MEDIUM. The vulnerability allows for Server Side Request Forgery, potentially enabling attackers to make unauthorized requests on behalf of the server. Users should review server configurations to ensure they are not vulnerable to SSRF attacks.

Defensive priority

Medium priority should be given to updating the MP3 Audio Player for Music, Radio & Podcast by Sonaar plugin to a version beyond 5.11, as this vulnerability allows for Server Side Request Forgery, which could lead to unauthorized requests and potential security breaches. Implementing additional security measures to monitor and restrict server-side requests is also recommended. Review server configurations to ensure they are not vulnerable to SSRF attacks and track exceptions, retest remediated assets, and close the item only after evidence is documented. Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Check relevant monitoring, detection, and logs for exposed assets that need extra review. Review compensating controls for exposed systems while remediation is scheduled and verified. Implement monitoring to detect potential SSRF attacks and review asset inventory for affected systems. Consider rollback/change windows for remediation and track source changes for affected components. Review official advisory or CVE record to validate affected scope, severity, and vendor guidance. Implement source tracking for changes related to this vulnerability. These actions will help ensure that the vulnerability is properly addressed and that the risk of exploitation is minimized. Therefore, at least the following distinct recommended actions are suggested: Update the MP3 Audio Player for Music, Radio & Podcast by Sonaar plugin to a version beyond 5.11; Implement additional security measures to monitor and restrict server-side requests; Review server configurations to ensure they are not vulnerable to SSRF attacks; Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up; Review compensating controls for exposed systems while remediation is scheduled and verified; Check relevant monitoring, detection, and logs for exposed assets that need extra review; Track exceptions, retest remediated assets, and close the item only after evidence is documented; Plan vendor-

Recommended defensive actions

• Update the MP3 Audio Player for Music, Radio & Podcast by Sonaar plugin to a version beyond 5.11.
• Implement additional security measures to monitor and restrict server-side requests.
• Review server configurations to ensure they are not vulnerable to SSRF attacks.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record was published on 2026-04-08T09:16:35.620Z and was last modified on 2026-07-24T21:10:00.143Z. The NVD entry is currently Deferred. Limited information is available about the specific details of the vulnerability and its potential impact. Defenders should verify the affected scope, review server configurations, and monitor for suspicious requests.

Official resources