CVE-2025-50014 is a Stored Cross-site Scripting (XSS) vulnerability classified under CWE-79, affecting the iamapinan PDPA Consent for Thailand software up to version 1.1.1. This vulnerability arises from improper neutralization of input during web page generation, allowing malicious scripts to be stored on the server and subsequently executed in the browsers of users who access the affected pages. The vulnerability has a CVSS 3.1 base score of 5.9, indicating a medium severity level. The vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L) reveals that the attack can be executed remotely over the network (AV:N) with low attack complexity (AC:L), but requires the attacker to have high privileges (PR:H) and user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability affects components beyond the initially vulnerable component. The impact on confidentiality, integrity, and availability is low to medium (C:L/I:L/A:L). Stored XSS vulnerabilities allow attackers to inject malicious JavaScript code that can steal session cookies, perform actions on behalf of users, or redirect users to malicious sites. Since this vulnerability is in a PDPA (Personal Data Protection Act) consent management system tailored for Thailand, it is likely used by organizations to manage user consent for data processing in compliance with Thai data protection laws. The absence of known exploits in the wild and lack of available patches at the time of publication indicate that exploitation may be limited currently but could increase if not addressed. The requirement for high privileges to exploit suggests that the attacker must already have some level of authorized access, reducing the risk of external attackers exploiting this directly without insider access or compromised credentials. However, once exploited, the vulnerability could lead to session hijacking, unauthorized actions, or phishing attacks against users interacting with the consent management system.

For European organizations, the direct impact of this vulnerability may be limited due to the product's focus on Thai PDPA compliance. However, organizations operating multinationally or with subsidiaries in Thailand, or those using this software for localized consent management, could face risks including unauthorized access to user sessions, manipulation of consent records, or reputational damage due to data protection non-compliance. The stored XSS could be leveraged to bypass security controls, potentially leading to data leakage or unauthorized changes to consent status, which is critical under GDPR and other privacy regulations. Additionally, if attackers exploit this vulnerability to impersonate users or administrators, it could undermine trust in consent mechanisms and lead to regulatory scrutiny. The medium severity and requirement for high privileges reduce the likelihood of widespread exploitation, but insider threats or compromised accounts could still pose significant risks. European entities with digital operations linked to Thailand or using similar consent management frameworks should be aware of this vulnerability's potential to impact data integrity and user trust.

1. Implement strict input validation and output encoding on all user-supplied data within the PDPA Consent for Thailand application to prevent injection of malicious scripts. 2. Apply the principle of least privilege to restrict administrative access and monitor for unusual privilege escalations or access patterns. 3. Conduct regular code reviews and security testing focused on XSS vulnerabilities, especially in web page generation components. 4. Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers accessing the affected application. 5. Use HTTP-only and Secure flags on cookies to reduce the risk of session hijacking via XSS. 6. Monitor logs for suspicious activities indicative of attempted or successful exploitation, including unusual user interactions or script injections. 7. Engage with the vendor or development team to obtain patches or updates addressing this vulnerability as soon as they become available. 8. Educate users and administrators about the risks of phishing and social engineering that could leverage this vulnerability. 9. For organizations with multi-region deployments, segregate consent management systems per jurisdiction to limit cross-border impact. 10. Implement multi-factor authentication (MFA) to reduce the risk posed by compromised credentials that could facilitate exploitation.