EUVD-2026-20035
GHSA-pfxv-5cjm-vgpg
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Primary rating from Vendor (Wordfence) · only source for this CVE.
CVSS VectorVendor: Wordfence
Lifecycle Timeline
3DescriptionCVE.org
The Blubrry PowerPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'powerpress' and 'podcast' shortcodes in versions up to, and including, 11.15.15 due to insufficient input sanitization and output escaping. 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.
AnalysisAI
Stored cross-site scripting in Blubrry PowerPress plugin versions up to 11.15.15 allows authenticated contributors and above to inject arbitrary scripts via the 'powerpress' and 'podcast' shortcodes, executing malicious code whenever users access affected pages. The vulnerability stems from insufficient input sanitization and output escaping in shortcode processing. EPSS score of 6.4 reflects moderate risk; exploitation requires contributor-level WordPress access but no public exploit code has been identified at the time of analysis.
Technical ContextAI
The vulnerability exploits improper handling of user input within WordPress shortcode processors. Blubrry PowerPress uses the 'powerpress' and 'podcast' shortcodes to embed podcast content, but fails to sanitize attributes and fails to escape output before rendering them in page content. This is a classic CWE-79 (Improper Neutralization of Input During Web Page Generation) flaw. The affected product (cpe:2.3:a:blubrry:powerpress_podcasting_plugin_by_blubrry) is a WordPress plugin architecture, meaning it executes within the WordPress page rendering pipeline where shortcode callbacks have direct influence over HTML output. The shortcode processor does not strip or encode malicious script tags or event handlers that contributors inject via shortcode attributes.
RemediationAI
Update Blubrry PowerPress plugin to version 11.15.16 or later, which includes fixes for input sanitization and output escaping in the affected shortcodes. Site administrators should navigate to WordPress Dashboard → Plugins → Installed Plugins, locate Blubrry PowerPress, and click 'Update Now' when available. For sites unable to update immediately, restrict contributor-level access to trusted users only and audit existing posts and pages for suspicious shortcode attributes. Detailed vulnerability and patch information is available at https://www.wordfence.com/threat-intel/vulnerabilities/id/de25459d-9e19-4e3e-982f-0b34fa89dc30?source=cve and https://plugins.trac.wordpress.org/changeset/3473781/powerpress.
Server-Side Request Forgery in the PowerPress Podcasting plugin by Blubrry for WordPress (versions before 11.17.1) allow
Stored Cross-Site Scripting in the PowerPress Podcasting plugin by Blubrry (WordPress) before version 11.16.11 allows an
Stored Cross-Site Scripting in PowerPress Podcasting plugin by Blubrry (WordPress, versions ≤ 11.16.8) allows authentica
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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