CVE-2023-5308: Secondlinethemes Podcast Subscribe Buttons

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

The Podcast Subscribe Buttons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'podcast_subscribe' shortcode in versions up to, and including, 1.4.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Secondlinethemes Podcast Subscribe Buttons: up to and including 1.4.8

Published 2023-10-20. Last modified 2026-06-17.