CVE-2026-26704 identifies a SQL Injection vulnerability in the Pharmacy Point of Sale System version 1.0, located in the /pharmacy/view_category.php script. SQL Injection vulnerabilities occur when user-supplied input is improperly sanitized and directly concatenated into SQL queries, allowing attackers to manipulate the database commands executed by the application. In this case, the vulnerable endpoint likely accepts category identifiers or parameters without adequate validation, enabling an attacker to craft malicious input that alters the intended SQL query logic. This can lead to unauthorized data retrieval, modification, or deletion within the underlying database. Since point-of-sale systems manage sensitive data such as inventory, pricing, and transaction records, exploitation could result in exposure of confidential business and customer information, financial fraud, or disruption of sales operations. The vulnerability does not require authentication, meaning any remote attacker with network access to the affected endpoint can attempt exploitation. No CVSS score has been assigned yet, and no public exploits have been reported, but the risk remains significant due to the critical role of POS systems in healthcare and retail environments. The lack of available patches necessitates immediate defensive measures such as input validation and query parameterization to mitigate potential attacks.

The impact of this SQL Injection vulnerability is substantial for organizations using the Pharmacy Point of Sale System v1.0. Successful exploitation can lead to unauthorized disclosure of sensitive data including customer information, transaction records, and inventory details, compromising confidentiality. Attackers may also alter or delete data, affecting data integrity and potentially causing financial losses or operational disruptions. Availability could be impacted if attackers execute destructive queries or cause database errors, leading to downtime of the POS system and interrupting sales processes. Given the critical nature of pharmaceutical sales and inventory management, such disruptions could have downstream effects on patient care and regulatory compliance. The vulnerability's ease of exploitation without authentication increases the risk of widespread attacks if the software is publicly accessible or poorly segmented within networks. Organizations may face reputational damage, regulatory penalties, and financial costs associated with breach remediation and system recovery.

To mitigate this vulnerability, organizations should first seek any official patches or updates from the software vendor and apply them promptly once available. In the absence of patches, implement strict input validation on all parameters accepted by /pharmacy/view_category.php, ensuring only expected data types and values are processed. Employ parameterized queries or prepared statements in the database access code to prevent direct concatenation of user input into SQL commands. Conduct thorough code reviews and security testing to identify and remediate similar injection points. Network segmentation should be enforced to restrict access to the POS system from untrusted networks. Deploy web application firewalls (WAFs) with rules designed to detect and block SQL Injection attempts targeting this endpoint. Monitor database logs and application behavior for unusual queries or errors indicative of exploitation attempts. Additionally, maintain regular backups of critical data to enable recovery in case of data tampering or loss.