CVE-2026-16776
Received Received - Intake

Stored XSS in MP3 Audio Player WordPress Plugin

Publication date: 2026-10-10

Last updated on: 2026-10-10

Assigner: Wordfence

Description
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.

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Meta Information

Published
2026-10-10
Last Modified
2026-10-10
Generated
2026-10-10
AI Q&A
2026-10-10
EPSS Evaluated
N/A
NVD
CVE-2026-16776
EUVD
EUVD-2026-96093

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
sonaar MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the MP3 Audio Player plugin for WordPress. It exists due to insufficient input sanitization and output escaping in shortcode attributes. Authenticated attackers with contributor-level access or higher can inject malicious scripts into pages. These scripts execute when users access the affected pages.

Detection Guidance

Check for the presence of the MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar plugin in WordPress versions up to and including 5.14.2. Review shortcode attributes in posts and pages for suspicious scripts or unexpected input handling.

Impact Analysis

If exploited, this vulnerability allows attackers to inject arbitrary web scripts into your WordPress site. This could lead to unauthorized actions on behalf of users, theft of sensitive data, or defacement of your website. Users visiting compromised pages may have their sessions hijacked or be redirected to malicious sites.

Compliance Impact

This vulnerability could lead to data breaches, exposing user data and violating privacy regulations like GDPR or HIPAA. Non-compliance may result in legal penalties, fines, or reputational damage due to unauthorized access to sensitive information.

Mitigation Strategies

Update the MP3 Audio Player plugin to the latest version if available. If not, consider disabling or removing the plugin until a patch is released. Review user roles with contributor-level access and above for any unauthorized changes.

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