---
id: CVE-2026-16776
title: >-
  The MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar plugin
  for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode
  Attributes in all versions up to, and including, 5.14.2 due to insufficient
  input sanit…
summary: >-
  The MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar plugin
  for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode
  Attributes in all versions up to, and including, 5.14.2 due to insufficient
  input sanit…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-10-10'
updated: '2026-10-10'
sourceUpdated: '2026-10-10T06:16:42.043'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-16776'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/mp3-music-player-by-sonaar/tags/5.13/admin/class-sonaar-music-admin.php#L8672
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/mp3-music-player-by-sonaar/tags/5.13/includes/class-sonaar-music-widget.php#L147
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/mp3-music-player-by-sonaar/tags/5.13/includes/class-sonaar-music-widget.php#L1923
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/mp3-music-player-by-sonaar/tags/5.13/includes/class-sonaar-music-widget.php#L71
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3620318%40mp3-music-player-by-sonaar&new=3620318%40mp3-music-player-by-sonaar
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3723825%40mp3-music-player-by-sonaar&new=3723825%40mp3-music-player-by-sonaar
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/5e4b0fa4-51b7-4892-9087-30618900e069?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-10-10T06:24:42.867Z'
---

## Overview

The MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 5.14.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress's save-time wp_kses_post does not neutralize the payload because the attack is delivered via shortcode attributes rather than raw HTML in post content, allowing the unescaped values to survive to render time.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.