CVE-2025-58204 in Podlove Podcast Publisher Plugin
Summary
by MITRE • 08/27/2025
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Eric Teubert Podlove Podcast Publisher allows Phishing. This issue affects Podlove Podcast Publisher: from n/a through 4.2.5.
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Analysis
by VulDB Data Team • 08/30/2025
The CVE-2025-58204 vulnerability represents a critical open redirect flaw within the Eric Teubert Podlove Podcast Publisher plugin, specifically impacting versions ranging from an unspecified initial version through 4.2.5. This vulnerability falls under the CWE-601 category of URL Redirection to Untrusted Site, which is a well-documented security weakness that enables attackers to manipulate web applications into redirecting users to malicious external domains. The flaw occurs when the plugin fails to properly validate and sanitize user-supplied URL parameters that are used for redirection purposes, creating an avenue for attackers to craft deceptive links that appear legitimate but ultimately direct users to phishing or malware distribution sites.
The technical implementation of this vulnerability stems from insufficient input validation within the plugin's redirection logic. When users interact with podcast-related features that involve URL parameter handling, the application does not adequately verify that redirect destinations originate from trusted sources. This weakness allows adversaries to exploit the redirection mechanism by crafting malicious URLs that contain attacker-controlled redirect parameters. The vulnerability is particularly dangerous because it can be leveraged to execute social engineering attacks where unsuspecting users are tricked into believing they are navigating to legitimate podcast-related pages while actually being redirected to phishing sites designed to capture credentials or personal information.
From an operational impact perspective, this vulnerability creates significant risks for podcast publishers and their audiences. Attackers can exploit the open redirect to create convincing phishing campaigns that target users of podcast platforms, potentially compromising user accounts and harvesting sensitive data. The vulnerability affects not only the technical security posture of individual podcast sites but also undermines user trust in the platform. According to ATT&CK framework category T1566, this vulnerability enables initial access through social engineering techniques, while T1189 specifically addresses the use of phishing as a method for privilege escalation. The impact extends beyond immediate credential theft, as compromised users may inadvertently expose their sites to further attacks or become vectors for spreading malicious content.
Mitigation strategies for CVE-2025-58204 must address both immediate remediation and long-term security hardening measures. The primary recommendation involves upgrading to the latest version of the Podlove Podcast Publisher plugin where the vulnerability has been patched. Security teams should implement strict input validation and sanitization for all URL parameters used in redirection contexts, ensuring that only predetermined trusted domains are allowed for redirect operations. Network-level controls including web application firewalls and content filtering systems can provide additional layers of protection by monitoring and blocking suspicious redirect patterns. Organizations should also conduct thorough security assessments of their podcast platforms, implementing regular vulnerability scanning and penetration testing to identify similar weaknesses. The implementation of security headers such as Content Security Policy can further prevent unauthorized redirects by explicitly defining trusted sources for navigation and content loading operations.