CVE-2025-58008 in Participants Database Plugin
Summary
by MITRE • 09/22/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in xnau webdesign Participants Database allows Stored XSS. This issue affects Participants Database: from n/a through 2.7.6.3.
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Analysis
by VulDB Data Team • 09/22/2025
The CVE-2025-58008 vulnerability represents a critical cross-site scripting flaw within the xnau webdesign Participants Database plugin, specifically impacting versions ranging from an unspecified beginning through 2.7.6.3. This vulnerability falls under the CWE-79 category of Improper Neutralization of Input During Web Page Generation, which is a fundamental weakness in web application security that enables attackers to inject malicious scripts into web pages viewed by other users. The stored nature of this XSS vulnerability means that malicious payloads are permanently stored on the server and executed whenever users access affected pages, making it particularly dangerous for persistent attacks.
The technical flaw manifests when the Participants Database plugin fails to properly sanitize or escape user input before rendering it in web page contexts. Attackers can exploit this weakness by submitting malicious script code through input fields that are then stored in the database and subsequently reflected in web pages without adequate output encoding. This allows threat actors to execute arbitrary JavaScript in the context of victim browsers, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The vulnerability's impact extends beyond simple script execution as it can be leveraged for more sophisticated attacks including privilege escalation within the affected system.
The operational impact of this vulnerability is significant for organizations relying on the Participants Database plugin for managing user data, event registrations, or participant information. Attackers could compromise user sessions, steal sensitive participant data, or manipulate the database content to serve malicious payloads to other users. The stored XSS nature means that even after initial exploitation, the malicious scripts continue to execute for all users accessing the affected pages, creating a persistent threat vector that can remain undetected for extended periods. This vulnerability directly violates the principle of least privilege and can undermine the integrity of the entire web application ecosystem.
Mitigation strategies for CVE-2025-58008 should prioritize immediate patching of the Participants Database plugin to the latest secure version, as this represents the most effective defense against the known vulnerability. Organizations should implement comprehensive input validation and output encoding mechanisms across all user-facing interfaces, ensuring that all data entering the system is properly sanitized before storage and that all data rendered in web contexts is appropriately escaped. Additional protective measures include implementing content security policies to limit script execution, conducting regular security audits of web applications, and establishing proper web application firewall rules to detect and block suspicious input patterns. The vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious web content, making layered defense strategies essential for comprehensive protection.