CVE-2024-29915 in Podcast Publisher Plugin
Summary
by MITRE • 03/27/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Podlove Podlove Podcast Publisher allows Reflected XSS.This issue affects Podlove Podcast Publisher: from n/a through 4.0.9.
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Analysis
by VulDB Data Team • 04/12/2025
The CVE-2024-29915 vulnerability represents a critical cross-site scripting flaw within the Podlove Podcast Publisher plugin, specifically targeting the web page generation process where input validation mechanisms fail to properly sanitize user-supplied data. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which occurs when web applications incorporate untrusted data into web pages without proper validation or encoding, creating opportunities for malicious actors to inject client-side scripts. The affected version range indicates that all versions from the initial release through 4.0.9 are susceptible to this reflected XSS attack vector.
The technical implementation of this vulnerability stems from the plugin's failure to neutralize input during the dynamic generation of web content, particularly when processing parameters from HTTP requests that are then reflected back to users. When a user visits a maliciously crafted URL containing script tags or other malicious payloads, the plugin fails to properly escape or encode these inputs before rendering them in the HTML output. This reflected nature means that the malicious script is not stored on the server but rather injected through the request parameters and immediately executed in the victim's browser when the page is loaded.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking, as it provides attackers with the ability to execute arbitrary code within the context of a user's browser session. An attacker could potentially steal cookies, modify page content, redirect users to malicious sites, or perform actions on behalf of authenticated users who visit the compromised pages. The reflected nature of the vulnerability makes it particularly dangerous as it can be delivered through email phishing campaigns, compromised links, or social engineering attacks without requiring persistent storage on the target server. This vulnerability directly aligns with ATT&CK technique T1566.001 for Phishing and T1059.001 for Command and Scripting Interpreter, as it enables both delivery mechanisms and execution capabilities.
Mitigation strategies for this vulnerability should prioritize immediate patching to version 4.1.0 or later where the XSS remediation has been implemented. Administrators should also implement additional defensive measures including input validation at multiple layers, output encoding for all dynamic content, and the implementation of Content Security Policy headers to limit script execution. The plugin developers should ensure proper sanitization of all user inputs through established libraries such as HTMLPurifier or similar validation frameworks, and implement proper HTTP header configurations to prevent script injection attacks. Organizations should also conduct regular security assessments of their web applications and implement automated vulnerability scanning tools to identify similar input validation flaws in other components of their digital infrastructure, as this type of vulnerability is particularly common in web applications that dynamically generate content from user-supplied data.