The Sonaar MP3 Audio Player – Music Player, Podcast Player & Radio WordPress plugin versions up to 5.8 contain a stored cross-site scripting vulnerability (CWE-79) due to improper neutralization of input in the sonaar_audioplayer shortcode. This allows authenticated users with contributor or higher roles to inject arbitrary JavaScript code that executes in the context of users visiting the injected pages. The vulnerability is network exploitable with low attack complexity and no user interaction required. Confidentiality and integrity impacts are limited to partial data exposure and modification, with no availability impact.

An attacker with contributor-level access or higher can inject persistent malicious scripts into pages via the sonaar_audioplayer shortcode. These scripts execute in the browsers of users who visit the infected pages, potentially leading to session hijacking, defacement, or other client-side attacks. The impact is limited to confidentiality and integrity with no direct availability impact. There are no known exploits in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider removing or disabling the sonaar_audioplayer shortcode if feasible. Monitor for plugin updates from Sonaar addressing this vulnerability.