Vulnerabilities / MP3 Audio Player / WPSEC-2026-1537
MP3 Audio Player <= 5.15 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'slider_navigation_vertical_alignment' Shortcode Attribute
Medium 6.4
CWE-79Fixed in 5.16
- ID
- WPSEC-2026-1537
- Plugin
- MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar (mp3-music-player-by-sonaar)
- Affected
- from 4.6 before 5.16
- Remediation
- Update to 5.16 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Medium · Affected versions Low among sites WPSec scans, 2026-10-23
- Attack surface
- MP3 Audio Player on WPSec AttackSurface
- Fix released
- Published
Description
The MP3 Audio Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'slider_navigation_vertical_alignment' attribute of the plugin's audio player shortcode in all versions up to, and including, 5.15 due to insufficient input sanitization and output escaping when the value is placed into the slider navigation's data-v-align HTML attribute. 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.
References
- https://wpsec.com/vuln/WPSEC-2026-1537/
- https://plugins.svn.wordpress.org/mp3-music-player-by-sonaar/tags/5.16/
- https://wordpress.org/plugins/mp3-music-player-by-sonaar/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
This advisory as JSON or Markdown · All advisories: JSON, RSS