CVE-2025-10064 is a cross-site scripting (XSS) vulnerability identified in the itsourcecode POS Point of Sale System version 1.0. The vulnerability arises from improper handling of the 'scripts' argument within the file /inventory/main/vendors/datatables/unit_testing/templates/dom_data_two_headers.php. This flaw allows an attacker to inject malicious scripts remotely without requiring authentication or prior privileges. The vulnerability is classified as reflected XSS, where the injected script is executed in the context of the victim's browser when they access a crafted URL or input. The CVSS 4.0 base score is 5.3, indicating a medium severity level. The attack vector is network-based (AV:N), with low attack complexity (AC:L), no privileges required (PR:N), and no user interaction required (UI:P), meaning the victim must interact with a malicious link or input to trigger the exploit. The impact primarily affects the confidentiality and integrity of user data by enabling script execution, which can lead to session hijacking, credential theft, or unauthorized actions within the POS system's web interface. Availability impact is minimal. The vulnerability is publicly disclosed, but no known exploits in the wild have been reported yet, and no official patches or mitigations have been published by the vendor. Given the POS system's role in processing payment and inventory data, exploitation could lead to theft of sensitive customer information or manipulation of transaction data.

For European organizations using the itsourcecode POS Point of Sale System 1.0, this vulnerability poses a tangible risk to the security of payment processing and inventory management operations. Exploitation could allow attackers to execute malicious scripts in the context of employees or administrators accessing the POS system, potentially leading to theft of payment card data, customer personal information, or unauthorized manipulation of sales and inventory records. This could result in financial losses, regulatory non-compliance (e.g., GDPR violations due to data leakage), reputational damage, and operational disruptions. Retailers, hospitality businesses, and other sectors relying on this POS system are particularly at risk. The medium severity rating suggests that while the vulnerability is not critical, it still warrants prompt attention to prevent exploitation, especially since the attack can be conducted remotely and without authentication. The lack of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, as public disclosure often leads to rapid development of exploit tools.

European organizations should implement the following specific measures to mitigate this vulnerability: 1) Immediately audit all instances of the itsourcecode POS Point of Sale System version 1.0 to identify affected deployments. 2) Restrict access to the vulnerable web interface components by network segmentation and firewall rules, limiting exposure to trusted internal networks only. 3) Employ web application firewalls (WAFs) with custom rules to detect and block malicious input patterns targeting the 'scripts' argument in the vulnerable PHP file. 4) Educate staff to avoid clicking on suspicious links or inputs that could trigger XSS attacks within the POS system interface. 5) Monitor logs for unusual activity or attempts to exploit the vulnerability. 6) Engage with the vendor or community to obtain patches or updates; if unavailable, consider upgrading to alternative POS solutions with better security postures. 7) Implement Content Security Policy (CSP) headers to reduce the impact of XSS by restricting script execution sources. 8) Regularly back up POS system data to enable recovery in case of compromise. These steps go beyond generic advice by focusing on network-level controls, user awareness, and compensating controls tailored to the POS environment.