Simple Laundry System CVE-2026-5540

Real-world risk is moderate-high for organizations deploying this specific application. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms remote exploitation with low attack complexity and zero authentication barriers, making this trivially exploitable. Publicly available exploit code exists per the GitHub POC reference, lowering the skill threshold for attackers. However, the application's limited deployment footprint (niche open-source project from code-projects.org) significantly constrains the attack surface compared to enterprise-grade software. CVSS 7.3 appropriately reflects confidentiality, integrity, and availability impacts (C:L/I:L/A:L), as SQLi can lead to data exfiltration, record tampering, or database-level denial of service. The absence from CISA KEV indicates no confirmed mass exploitation campaigns, suggesting opportunistic targeting rather than automated scanning. Organizations running Simple Laundry System 1.0 face immediate risk and should prioritize remediation, but this is not a widespread critical infrastructure threat.

An unauthenticated attacker identifies a public-facing Simple Laundry System 1.0 installation through reconnaissance scanning or Shodan queries. Using the publicly available GitHub POC, they craft a malicious HTTP request to /modifymember.php with a firstName parameter containing SQL injection payloads such as "admin' OR '1'='1" or UNION-based queries. The vulnerable parameter handler concatenates this input directly into a SQL UPDATE or SELECT statement without sanitization. The attacker extracts the entire customer database including names, addresses, phone numbers, and service history via UNION SELECT attacks. They escalate by dumping administrator password hashes, modifying pricing records to cause billing discrepancies, or executing database commands to create backdoor accounts for persistent access.