XSS in Sonaar Mp3 Audio Player – Music Player, Podcast & Radio By
CVE-2026-16776
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/5e4b0fa4-51b7-4892-9087-30618…
- plugins.trac.wordpress.org/browser/mp3-music-player-by-sonaar/tags/5.13/include…
- plugins.trac.wordpress.org/browser/mp3-music-player-by-sonaar/tags/5.13/include…
- plugins.trac.wordpress.org/browser/mp3-music-player-by-sonaar/tags/5.13/admin/c…
- plugins.trac.wordpress.org/browser/mp3-music-player-by-sonaar/tags/5.13/include…
- plugins.trac.wordpress.org/changeset
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-16776?
- CVE-2026-16776 is a medium-severity vulnerability in Sonaar Mp3 Audio Player – Music Player, Podcast & Radio By, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-10-10.
- How severe is CVE-2026-16776?
- Medium severity. CVSS v3 base score is 6.4 out of 10.