CVE-2026-28174 in WP Event Solution Plugin
Summary
by MITRE • 08/13/2026
Customer Sensitive Data Exposure in WP Event SOlution <= 4.1.18 versions.
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Analysis
by VulDB Data Team • 08/13/2026
The vulnerability in WP Event Solution plugin versions up to 4.1.18 represents a critical customer sensitive data exposure issue that stems from inadequate access controls and improper authentication mechanisms within the WordPress ecosystem. This flaw allows unauthorized users to access event registration data, attendee information, and other confidential details that should only be accessible to authenticated administrators or event organizers. The vulnerability manifests due to insufficient input validation and privilege escalation pathways that enable malicious actors to bypass standard security measures through crafted requests or by exploiting weak session management practices.
The technical implementation of this vulnerability involves the plugin's failure to properly verify user permissions before serving sensitive data endpoints. Attackers can exploit this weakness by constructing specific api calls or accessing direct database queries that reveal registration details, personal information, and contact data of event participants. This exposure occurs because the plugin does not adequately enforce role-based access controls, allowing users with minimal privileges to retrieve data that should be restricted to authorized personnel only. The flaw essentially creates a backdoor pathway for data exfiltration through improperly secured web service endpoints.
The operational impact of this vulnerability extends beyond simple data theft to encompass potential regulatory violations under data protection frameworks such as gdpr and ccpa, given that the exposed information typically includes personal identifiers, contact details, and registration patterns. Organizations using affected versions face significant reputational damage, legal consequences, and financial penalties if sensitive customer information is compromised. The vulnerability also enables secondary attacks including social engineering campaigns, identity theft, and targeted phishing attempts that leverage the exposed personal data for further exploitation. Additionally, the presence of such vulnerabilities undermines trust in the organization's digital infrastructure and may trigger mandatory security audits.
Mitigation strategies should prioritize immediate plugin updates to versions 4.1.19 or later where the vulnerability has been addressed through proper access control implementations and enhanced authentication checks. Organizations must also implement network-level restrictions to limit access to sensitive endpoints, deploy web application firewalls to detect and block suspicious requests, and conduct thorough security audits of all installed plugins and themes. The remediation process should include immediate credential rotation for affected systems, implementation of multi-factor authentication, and establishment of regular vulnerability scanning procedures to identify similar weaknesses in the broader application landscape. This vulnerability aligns with cwe-285 access control flaws and may map to attack techniques in the mitre att&ck framework under privilege escalation and credential access categories.