CVE-2025-51970 is a high-severity SQL Injection vulnerability identified in the action.php endpoint of the PuneethReddyHC Online Shopping System Advanced 1.0. The vulnerability arises from improper sanitization of user-supplied input in the 'keyword' POST parameter, allowing an attacker to inject malicious SQL code. This flaw falls under CWE-89, which pertains to SQL Injection vulnerabilities where untrusted input is concatenated into SQL queries without proper validation or parameterization. Exploiting this vulnerability does not require authentication or user interaction, and the attacker can remotely execute crafted SQL statements with low attack complexity. According to the CVSS v3.1 vector (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N), the attack vector is local (AV:L), meaning the attacker must have local access to the system or network segment to exploit it. The vulnerability allows high impact on confidentiality and integrity, enabling attackers to read sensitive data and modify database contents, but it does not affect availability. No known exploits are currently reported in the wild, and no patches have been published yet. The vulnerability was reserved in mid-June 2025 and published at the end of July 2025. The affected product is an online shopping system, which typically handles sensitive customer data, including personal and payment information, making this vulnerability particularly critical if exploited.

For European organizations using the PuneethReddyHC Online Shopping System Advanced 1.0, this vulnerability poses significant risks. Exploitation could lead to unauthorized disclosure of customer data, including personally identifiable information (PII) and potentially payment details, violating GDPR and other data protection regulations. Data integrity could also be compromised, allowing attackers to alter transaction records or product information, which could disrupt business operations and damage customer trust. Although the attack requires local access, insider threats or attackers who have gained initial footholds within the network could leverage this vulnerability to escalate privileges or move laterally. The lack of availability impact means service disruption is less likely, but the confidentiality and integrity breaches alone can result in regulatory fines, reputational damage, and financial losses. European e-commerce businesses relying on this system should be particularly vigilant, as the online shopping sector is a frequent target for cybercriminals seeking financial gain or data theft.

Given the absence of an official patch, European organizations should implement immediate compensating controls. These include restricting local access to the affected systems through network segmentation and strict access controls, ensuring only trusted personnel can reach the vulnerable endpoint. Employing Web Application Firewalls (WAFs) with custom rules to detect and block SQL Injection patterns targeting the 'keyword' POST parameter can reduce exploitation risk. Conduct thorough input validation and sanitization on all user inputs, ideally by applying parameterized queries or prepared statements in the application code. Organizations should also monitor logs for suspicious activity around the action.php endpoint and the keyword parameter. Regularly auditing user privileges and employing intrusion detection systems (IDS) can help detect lateral movement attempts. Finally, organizations should engage with the vendor or development team to prioritize patch development and apply updates promptly once available.