CVE-2025-10028 is a cross-site scripting (XSS) vulnerability identified in the itsourcecode POS Point of Sale System version 1.0. The vulnerability exists in an unspecified component within the file /inventory/main/vendors/datatables/unit_testing/templates/6776.php. Specifically, the issue arises from improper sanitization or validation of the 'scripts' argument, which an attacker can manipulate to inject malicious scripts. This vulnerability can be exploited remotely without requiring authentication, although it requires some level of user interaction (UI:P) to trigger the malicious payload. The CVSS 4.0 vector indicates that the attack vector is network-based (AV:N), with low attack complexity (AC:L), no privileges required (PR:L, indicating low privileges), and no user interaction required to initiate the attack (UI:P, meaning some user interaction is needed to execute the payload). The impact primarily affects the integrity of the victim's session or data (VI:L), with no direct impact on confidentiality or availability. The vulnerability is rated medium severity with a CVSS score of 5.1. While no patches or fixes are currently linked, the exploit code is publicly available, increasing the risk of exploitation. The vulnerability could allow attackers to execute arbitrary JavaScript in the context of the POS system's web interface, potentially leading to session hijacking, data manipulation, or redirection to malicious sites. Given the POS system's role in handling payment and inventory data, exploitation could have downstream effects on transaction integrity and customer data security.

For European organizations using the itsourcecode POS Point of Sale System version 1.0, this vulnerability poses a moderate risk. Exploitation could lead to unauthorized script execution within the POS management interface, potentially allowing attackers to manipulate transaction data, steal session tokens, or inject fraudulent entries into inventory or sales records. This could result in financial losses, reputational damage, and regulatory non-compliance, especially under GDPR if customer data is compromised. Since POS systems are critical infrastructure in retail and hospitality sectors, disruption or data integrity issues could impact business operations. The remote exploitability and public availability of exploit code increase the likelihood of attacks, particularly targeting smaller or less-secure deployments that may not have robust network segmentation or monitoring. However, the requirement for some user interaction may limit automated exploitation. Overall, the threat could affect payment processing reliability and trust in affected businesses across Europe, especially those relying on this specific POS software version.

1. Immediate mitigation should include restricting network access to the POS management interface to trusted internal networks only, using firewalls and VPNs to limit exposure. 2. Implement strict input validation and output encoding on all user-supplied inputs, especially the 'scripts' argument in the affected PHP file, to prevent injection of malicious scripts. 3. Deploy web application firewalls (WAFs) with custom rules to detect and block XSS attack patterns targeting the POS system. 4. Conduct thorough code review and security testing of the POS system, focusing on the vulnerable template file and related components, to identify and remediate similar input validation issues. 5. Educate staff on phishing and social engineering risks, as user interaction is required to trigger the exploit. 6. Monitor logs for unusual activity or repeated attempts to exploit the vulnerability. 7. Engage with the vendor or community to obtain or develop patches or updates addressing this vulnerability. 8. Consider isolating the POS system from general-purpose networks and segmenting it to reduce attack surface. 9. Regularly update and patch all related software components and dependencies to minimize exposure to known vulnerabilities.