CVE-2026-63047 in Events Booking Plugin
Summary
by MITRE • 07/22/2026
The Joomla extension Events Booking prior version 5.0-5.8.1 did not properly verify that an actor is allowed to download invoice information.
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Analysis
by VulDB Data Team • 07/22/2026
The vulnerability in Joomla extension Events Booking versions prior to 5.0-5.8.1 represents a critical access control flaw that undermines the security of financial data handling within the platform. This issue stems from inadequate authentication and authorization checks during invoice download operations, allowing unauthorized users to bypass normal access restrictions and obtain sensitive billing information. The vulnerability exists because the extension fails to validate user permissions before processing invoice retrieval requests, creating an exploitable gap in the application's security model.
This technical flaw falls under the category of insufficient access control as defined by CWE-284, where the system does not properly enforce access restrictions for sensitive resources. The vulnerability enables what is known as privilege escalation or unauthorized data access, which can be categorized under ATT&CK technique T1078 - Valid Accounts and T1566 - Phishing with Malicious Attachments when exploited through social engineering vectors. Attackers can leverage this weakness to obtain invoice details including payment amounts, transaction IDs, customer information, and potentially sensitive financial data that should only be accessible to authorized personnel such as administrators or account holders.
The operational impact of this vulnerability extends beyond simple data exposure, as it creates potential for financial fraud, identity theft, and compliance violations. Organizations using affected versions of Events Booking may face regulatory penalties under standards such as PCI DSS, GDPR, or HIPAA depending on the nature of the data being processed. The vulnerability can be exploited by any authenticated user who has access to the application, potentially including customers or low-privilege users who should not have access to financial records. This creates a significant risk for businesses that process payments through the Joomla platform, as attackers could systematically download invoices from multiple transactions to build profiles of customer purchasing behavior and financial patterns.
Mitigation strategies should include immediate patching to version 5.0-5.8.1 or later where the access control mechanisms have been properly implemented. Organizations should also implement additional security controls such as network segmentation, monitoring for unusual invoice download patterns, and regular security audits of third-party extensions. The fix typically involves implementing proper authentication checks before processing invoice requests, ensuring that only users with appropriate permissions can access financial information. Security teams should also consider implementing web application firewalls to detect and block suspicious access patterns and establish incident response procedures for potential exploitation of this vulnerability. Additionally, organizations should conduct thorough inventory assessments of all installed Joomla extensions to identify similar vulnerabilities across their digital infrastructure.