Podlove Podcast Publisher Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the Podlove Podcast Publisher plugin for WordPress, affecting versions through 4.1.25. The issue arises from inadequate input sanitization and output escaping, allowing authenticated attackers with administrator-level access to inject arbitrary web scripts into pages. These scripts execute when users access the injected pages. This vulnerability is specific to multi-site installations where unfiltered_html has been disabled.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the affected page.

Remediation

Users are advised to update the Podlove Podcast Publisher plugin to version 4.2.0 or later.