CVE-2026-16776 MP3 Audio Player <= 5.14.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
Authenticated contributors can inject arbitrary scripts via shortcode attributes, leading to stored XSS execution for other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16776?
CVE-2026-16776 is a medium-severity cross-site scripting vulnerability in MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar, published on 10 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-16776?
How do I fix CVE-2026-16776?
No fix has been published for CVE-2026-16776 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-16776 being exploited?
There is no known exploitation of CVE-2026-16776 in the wild and no public exploit code.
Sources
Also known as GHSA-8r3f-7w4p-5xwm.