What’s Vulnerable › Vulnerabilities

CVE-2023-5308: Podcast Subscribe Buttons <= 1.4.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-20 · updated 2026-06-17
• Weakness: CWE-79

Description

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: through 1.4.8

References

• https://plugins.trac.wordpress.org/browser/podcast-subscribe-buttons/tags/1.4.8/template-parts/inline-button.php#L30
• https://plugins.trac.wordpress.org/changeset/2973904/podcast-subscribe-buttons#file529
• https://www.wordfence.com/threat-intel/vulnerabilities/id/17dbfb82-e380-464a-bfaf-2d0f6bf07f25?source=cve
• https://plugins.trac.wordpress.org/browser/podcast-subscribe-buttons/tags/1.4.8/template-parts/inline-button.php#L30
• https://plugins.trac.wordpress.org/changeset/2973904/podcast-subscribe-buttons#file529
• https://www.wordfence.com/threat-intel/vulnerabilities/id/17dbfb82-e380-464a-bfaf-2d0f6bf07f25?source=cve

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