CVE-2026-16776
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
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 sanitization and output escaping. An authenticated attacker with contributor-level access or above can inject arbitrary web scripts into pages that execute whenever a user visits the 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.
Risk Assessment
An attacker with a contributor account can persistently inject malicious JavaScript into site pages, potentially leading to session theft, redirects, or administrator account takeover. Any WordPress site running the vulnerable plugin version is at risk.
Recommendation
Update the MP3 Audio Player plugin to a version newer than 5.14.2 as soon as a fix is available, and limit contributor-level accounts to the minimum necessary.
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Original NVD description (English source)
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 data from NVD (NIST) · CISA KEV · EPSS

