CVE-2026-111967: MP3 Audio Player stored XSS in shortcode attribute

CVE-2026-111967 · Severity: info · Published 2026-10-28

The MP3 Audio Player WordPress plugin fails to escape a shortcode attribute before rendering it in HTML, allowing contributors and administrators to inject malicious JavaScript. When other users such as site administrators view or preview posts containing this code, the JavaScript executes in their browser, potentially allowing attackers to steal credentials, modify site content, or perform actions as that user.

Vendors: Sonaar.

Quick answers

Is CVE-2026-111967 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-111967 being exploited in the wild.
How severe is CVE-2026-111967?
Informational severity, published 28 October 2026.
Which products and versions are affected?
Sonaar MP3 Audio Player 5.9 through 5.15.
Is there a fix for CVE-2026-111967?
Yes: fixed in 5.16. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-111967 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-111967?
Check whether you run Sonaar MP3 Audio Player at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 5.16

Technical details

The plugin processes an unescaped shortcode attribute and outputs it directly into an HTML attribute context, enabling stored XSS (CWE-79). An attacker with Contributor-level or higher access can craft a post containing a malicious shortcode that injects arbitrary JavaScript. When an administrator or other privileged user previews or views the post, the injected script executes in their session.

Affected products

  • Sonaar MP3 Audio Player 5.9 through 5.15

Timeline

  • 2026-10-26: disclosed
  • 2026-10-28: advisory

References

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