CVE-2026-42414 in ListingPro Plugin
Summary
by MITRE • 10/06/2026
Subscriber SQL Injection in ListingPro <= 2.9.12 versions.
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Analysis
by VulDB Data Team • 10/06/2026
The vulnerability identified as a Subscriber SQL Injection flaw within ListingPro versions up to and including 2.9.12 represents a critical security deficiency rooted in the improper handling of user-supplied input during database query construction. This specific class of injection attacks allows an authenticated attacker, typically operating under the privileges of a subscriber-level account, to manipulate backend Structured Query Language statements executed by the application's web server. The core technical flaw lies in the failure to properly sanitize or parameterize data inputs that are directly incorporated into SQL commands without adequate validation mechanisms. By exploiting this weakness, an adversary can inject malicious SQL code through various entry points within the subscriber management interface or related API endpoints, effectively bypassing intended access controls and logic flows designed to restrict such operations to administrative roles only.
From a technical perspective, this vulnerability aligns with CWE-89, which categorizes Improper Neutralization of Special Elements used in an SQL Command commonly known as SQL Injection. The exploitation vector typically involves crafting specific HTTP requests where parameters are manipulated to alter the structure of the underlying database query. This manipulation can lead to unauthorized data retrieval, modification, or deletion within the application's persistent storage layer. Because the vulnerability is accessible via subscriber-level credentials, it lowers the barrier for entry significantly compared to vulnerabilities requiring administrative access. Attackers with even minimal privileges on the platform can leverage this flaw to extract sensitive information such as user passwords, email addresses, and other personally identifiable information stored in the database tables associated with subscriber profiles or related entities.
The operational impact of this vulnerability extends beyond simple data exfiltration. Successful exploitation can lead to a complete compromise of the application's integrity and confidentiality. An attacker might use the injected SQL commands to escalate privileges by modifying user role assignments, thereby gaining administrative control over the platform. Furthermore, depending on the database configuration and backend capabilities, such as MySQL with certain extensions enabled, it may be possible to execute operating system-level commands or perform denial-of-service attacks against the underlying database infrastructure. This poses a severe risk to both the service provider and its user base, potentially resulting in significant reputational damage, regulatory penalties under data protection laws like GDPR or CCPA due to the exposure of personal data, and loss of customer trust.
In terms of threat modeling, this vulnerability maps closely to MITRE ATT&CK techniques related to SQL Injection for Data Access (T1190) and potentially Privilege Escalation if used to modify user roles. The attack pattern involves identifying vulnerable parameters within the subscriber-related functionalities, constructing payloads that exploit the lack of input validation, and executing these payloads through standard web interactions or automated tools designed for penetration testing. The persistence of this flaw in versions up to 2.9.12 indicates a gap in the secure software development lifecycle regarding rigorous code review and static analysis focused on database interaction layers.
To mitigate this vulnerability, immediate action is required by upgrading ListingPro to version 2.9.13 or later where these issues have been addressed through improved input validation and parameterized query implementations. Developers should ensure that all user inputs are strictly validated against expected formats using allow-listing strategies rather than relying on block-lists which can be easily bypassed. Implementing prepared statements with bound parameters is the most effective defense, as it ensures that data sent to the database is treated exclusively as data and never as executable code. Additionally, applying the principle of least privilege to database accounts used by the web application limits the potential damage even if an injection occurs. Regular security audits, dynamic application security testing, and monitoring for anomalous SQL query patterns in server logs are also recommended practices to detect and prevent such exploitation attempts effectively.