CVE-2026-58149 in Events Booking
Summary
by MITRE • 07/17/2026
The Joomla extension Events Booking is vulnerable to an unauthenticated user enumeration that allows to retrieve account usernames and email addresses.
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Analysis
by VulDB Data Team • 07/17/2026
The vulnerability in the Joomla extension Events Booking represents a critical information disclosure flaw that enables unauthenticated attackers to enumerate user accounts through exposed API endpoints or data retrieval mechanisms. This type of vulnerability directly violates security principles by providing unauthorized access to sensitive user information without requiring authentication credentials, creating potential attack vectors for subsequent exploitation phases.
The technical implementation of this flaw likely involves insufficient access controls within the extension's user management functions, where database queries or API responses return user account details including usernames and email addresses without proper authorization checks. Attackers can systematically query the affected endpoints to harvest multiple user accounts, potentially leading to credential stuffing attacks, social engineering campaigns, or targeted phishing attempts against identified users.
This vulnerability significantly impacts organizational security posture by exposing user identity information that can be leveraged for various malicious activities. The enumeration process typically involves sending crafted requests to specific URLs or API endpoints that return user data in structured formats such as json or xml responses. Security frameworks like CWE-200 categorize this as information exposure, while ATT&CK framework references T1087.001 for account discovery techniques that can be automated through reconnaissance tools.
The operational consequences extend beyond immediate information leakage, as compromised user data creates opportunities for advanced persistent threats and credential-based attacks. Organizations may face compliance violations under regulations such as gdpr and pci dss when user personal information is exposed through such vulnerabilities. The attack surface expansion occurs when multiple users are enumerated, potentially revealing organizational structures, employee patterns, or user roles that can aid in further targeting.
Mitigation strategies should include implementing proper access controls on all user-related endpoints, enforcing rate limiting to prevent automated enumeration attempts, and applying input validation to ensure only authorized requests are processed. Security patches should be applied immediately to update the extension to versions that address this specific enumeration flaw. Network level protections such as web application firewalls can help detect and block suspicious enumeration patterns while monitoring for unusual traffic patterns targeting user accounts.
Additional defensive measures include implementing multi-factor authentication for administrative accounts, regular security audits of third-party extensions, and establishing monitoring protocols to detect unauthorized access attempts. Organizations should conduct comprehensive vulnerability assessments to identify similar issues in other extensions or custom applications that may exhibit comparable information disclosure vulnerabilities. The remediation process should also involve reviewing extension permissions and ensuring that only necessary endpoints are exposed to public access.