CVE-2025-10029 is a cross-site scripting (XSS) vulnerability identified in the itsourcecode POS Point of Sale System version 1.0. The vulnerability resides in the file /inventory/main/vendors/datatables/unit_testing/templates/complex_header_2.php, where manipulation of the 'scripts' argument allows an attacker to inject malicious scripts. This flaw enables remote attackers to execute arbitrary JavaScript code in the context of the vulnerable web application without requiring authentication. The vulnerability is classified as reflected or stored XSS, depending on the application context, and can be exploited by crafting malicious URLs or input fields that are improperly sanitized or encoded before being rendered in the user interface. The CVSS 4.0 base score is 5.1, indicating a medium severity level. The vector string (AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P) shows that the attack can be performed remotely over the network with low attack complexity, does not require privileges but does require some user interaction, and results in limited integrity impact with no confidentiality or availability impact. The exploit code has been publicly released, increasing the risk of exploitation, although no known active exploitation in the wild has been reported yet. This vulnerability is significant because POS systems handle sensitive payment and inventory data, and XSS can be leveraged for session hijacking, phishing, or injecting malicious payloads to compromise the system or its users.

For European organizations using the itsourcecode POS Point of Sale System 1.0, this vulnerability poses a risk to the integrity of their POS environment and potentially to customer data security. Successful exploitation could allow attackers to execute malicious scripts that steal session tokens, manipulate displayed data, or redirect users to phishing sites. This could lead to financial fraud, reputational damage, and regulatory non-compliance under GDPR due to potential exposure of personal data. Since POS systems are often integrated with payment processing and inventory management, disruption or compromise could affect business operations and customer trust. The medium severity rating suggests moderate risk, but the public availability of exploit code increases the urgency for mitigation. European retailers, hospitality businesses, and any sector relying on this POS system are at risk, especially if they have not applied patches or mitigations. The requirement for some user interaction means social engineering or phishing could be used to trigger the exploit, broadening the attack surface.

1. Immediate mitigation should include input validation and output encoding on the 'scripts' argument in the affected PHP file to prevent injection of malicious code. 2. Apply any available patches or updates from itsourcecode vendor once released; if no official patch exists, consider temporary workarounds such as disabling or restricting access to the vulnerable component. 3. Implement Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts within the POS web interface. 4. Conduct user awareness training to reduce the risk of social engineering attacks that could trigger the vulnerability. 5. Monitor logs and network traffic for unusual activity indicative of attempted exploitation. 6. Segregate the POS network from other critical infrastructure to limit lateral movement if compromise occurs. 7. Regularly audit and test the POS environment for XSS and other web vulnerabilities using automated scanning and manual penetration testing.