Podcast Subscribe Buttons <= 1.4.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- István Márton
References
- 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
Affected Vendor
secondlinethemes
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