CVE-2026-32351 in PowerPress Podcasting Plugin
Summary
by MITRE • 03/13/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in blubrry PowerPress Podcasting powerpress allows Stored XSS.This issue affects PowerPress Podcasting: from n/a through <= 11.15.13.
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Analysis
by VulDB Data Team • 03/20/2026
The CVE-2026-32351 vulnerability represents a critical cross-site scripting flaw within the blubrry PowerPress Podcasting plugin for WordPress, classified under CWE-79 as improper neutralization of input during web page generation. This vulnerability enables attackers to inject malicious scripts into web pages viewed by other users, creating a persistent security risk that can affect both administrators and regular site visitors. The flaw specifically manifests as a stored XSS vulnerability, meaning that malicious payloads are permanently stored on the server and executed whenever affected pages are accessed, rather than requiring users to click on a malicious link or perform specific actions. The vulnerability impacts all versions of the PowerPress plugin up to and including version 11.15.13, making it a widespread concern for WordPress sites utilizing this podcasting solution.
The technical exploitation of this vulnerability occurs through the improper handling of user-supplied input within the plugin's web page generation process. When users submit content through the podcasting interface or manage podcast-related data, the plugin fails to adequately sanitize or escape special characters in the input before rendering it in HTML output. This allows attackers to inject malicious JavaScript code through various input fields including podcast titles, descriptions, episode notes, or other editable content areas. The stored nature of this vulnerability means that once malicious code is injected, it remains persistent in the database and will execute every time the affected page is loaded, potentially compromising user sessions, stealing cookies, or redirecting users to malicious sites. The vulnerability specifically affects the plugin's content rendering functionality where user input is directly embedded into HTML without proper context-aware escaping mechanisms.
The operational impact of this vulnerability extends beyond simple script execution, creating significant risks for WordPress site administrators and their users. Attackers can leverage this vulnerability to perform session hijacking by stealing authentication cookies, redirect users to phishing sites, deface the podcast content, or even execute more sophisticated attacks such as credential theft or privilege escalation within the WordPress environment. The persistence of stored XSS makes it particularly dangerous as it can remain undetected for extended periods while continuously affecting all users who access the compromised podcast content. Additionally, this vulnerability can be exploited to target administrators who might view podcast management pages, potentially allowing attackers to gain elevated privileges or access sensitive administrative functions. The impact is amplified in environments where multiple users interact with the podcast content management system, as each user who accesses the affected pages becomes a potential victim of the stored script execution.
Mitigation strategies for CVE-2026-32351 should prioritize immediate action to protect affected systems. The primary and most effective mitigation is to upgrade the PowerPress plugin to version 11.15.14 or later, which contains the necessary patches to address the XSS vulnerability. Organizations should also implement additional defensive measures including input validation and output escaping mechanisms, regular security monitoring of the plugin's functionality, and comprehensive user access controls to limit who can modify podcast content. Network-level protections such as web application firewalls can provide additional layers of defense, though they should not be considered a substitute for proper patch management. Security teams should conduct thorough audits of all installed plugins and themes to identify similar vulnerabilities, implement proper content sanitization practices, and establish monitoring procedures to detect potential exploitation attempts. The vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious content and T1059.007 for command and scripting interpreter through script-based attacks, emphasizing the need for comprehensive security measures beyond simple patching.