CVE-2026-102782 in Simple Membership Extension
Summary
by MITRE • 10/07/2026
Joomla Extension - ordasoft.com - Unauthenticated SQL injection in OrdaSoft Simple Membership < 7.4.0 - site/simplemembership.php dispatches task=checkLoginPass with no authentication or access control check of any kind. The handler reads a login request parameter through Joomla’s generic, non-sanitizing input filter, which strips HTML/script tags but never touches quotes or SQL syntax, and concatenates it directly into a query string with no escaping or parameterization:
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Analysis
by VulDB Data Team • 10/07/2026
The vulnerability identified in OrdaSoft Simple Membership versions prior to 7.4.0 represents a critical unauthenticated SQL injection flaw within the Joomla extension ecosystem. This specific weakness is located in the component's entry point, specifically triggered when the dispatch task checkLoginPass is invoked via site/simplemembership.php. The core issue stems from a complete absence of authentication or access control mechanisms for this particular endpoint, allowing any remote actor to interact with it without valid credentials. When processing login requests, the application relies on Joomla’s generic input filter which performs basic sanitization by stripping HTML and script tags but fails to address SQL-specific characters such as quotes or backslashes. Consequently, user-supplied data is concatenated directly into database query strings without proper escaping or parameterized queries, creating a direct pathway for malicious SQL code execution.
From a technical perspective, this flaw aligns with the Common Weakness Enumeration standard under CWE-89, which classifies improper neutralization of special elements used in an SQL command. The lack of input validation allows attackers to manipulate the structure of backend database queries by injecting arbitrary SQL statements through the login parameters. Because the endpoint does not verify user session state or permissions before processing the request, the vulnerability is exploitable without prior authentication. This characteristic places it firmly within the ATT&CK framework under techniques related to Injection and specifically T1190 Exploit Public-Facing Application, as well as T1136 Create Account if the injection allows for privilege escalation through database manipulation. The severity of this issue is heightened by its unauthenticated nature, meaning that any internet-facing instance running a vulnerable version can be targeted immediately upon discovery without needing to bypass login screens or exploit session management flaws.
The operational impact of this vulnerability extends beyond simple data exfiltration. An attacker with sufficient privileges in the database context could potentially read sensitive user information including hashed passwords and personal identifiable information stored within the Joomla user tables. Furthermore, depending on the underlying Database Management System configuration, such as MySQL running with FILE privilege enabled, an attacker might leverage the injection to write files to the server or execute operating system commands through specific SQL functions like INTO OUTFILE or xp_cmdshell in Microsoft SQL Server environments. This transforms a database-level vulnerability into a potential full system compromise, allowing for persistent backdoors and lateral movement within the network infrastructure hosting the Joomla application.
Mitigation strategies must prioritize immediate remediation of this critical flaw. The most effective solution is to upgrade OrdaSoft Simple Membership to version 7.4.0 or later where the developer has addressed these input handling deficiencies by implementing proper parameterized queries and enforcing strict access controls on all administrative and authentication-related endpoints. In scenarios where an immediate patch cannot be applied, administrators should implement a Web Application Firewall rule set designed to detect and block SQL injection patterns within login parameters. Additionally, restricting direct access to simplemembership.php via server-level configuration or IP whitelisting can provide temporary relief by limiting the attack surface until the software update is deployed. Regular security audits focusing on input validation practices across all custom Joomla extensions are recommended to prevent similar vulnerabilities from arising in other components that may share these coding patterns.