EUVD-2026-13994
GHSA-fm6h-hmg3-46c3
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
3Description
The fyyd podcast shortcodes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'fyyd-podcast', 'fyyd-episode', and 'fyyd' shortcodes in all versions up to, and including, 0.3.1. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes such as 'color', 'podcast_id', and 'podcast_slug'. These attributes are directly concatenated into inline JavaScript within single-quoted string arguments without any escaping or sanitization, allowing an attacker to break out of the JavaScript string context. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Analysis
The fyyd podcast shortcodes plugin for WordPress contains a Stored Cross-Site Scripting vulnerability affecting all versions up to and including 0.3.1, where shortcode attributes (color, podcast_id, podcast_slug) are improperly concatenated into inline JavaScript without sanitization or escaping. Authenticated attackers with Contributor-level access or higher can inject arbitrary JavaScript that executes for all users viewing affected pages, allowing session hijacking, credential theft, or malware distribution. …
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Remediation
Within 30 days: Identify affected systems running all and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.
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External POC / Exploit Code
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