CVE-2025-67631 identifies a Stored Cross-Site Scripting (XSS) vulnerability in the Gift Hunt ecommerce platform, affecting versions up to and including 2.0.2. The vulnerability stems from improper neutralization of input during web page generation, meaning that user-supplied data is not adequately sanitized or encoded before being embedded in HTML output. This allows an attacker with at least limited privileges (PR:L) to inject malicious JavaScript code that is stored persistently on the server and executed in the browsers of other users who view the affected pages. The vulnerability requires user interaction (UI:R), such as a victim visiting a crafted page or viewing a manipulated product or gift listing. The CVSS 3.1 base score is 5.4 (medium), reflecting network attack vector (AV:N), low attack complexity (AC:L), limited privileges required, and partial impact on confidentiality and integrity but no impact on availability. The scope is changed (S:C), indicating that the vulnerability affects resources beyond the initially vulnerable component. Stored XSS can lead to session hijacking, theft of sensitive information, defacement, or unauthorized actions performed on behalf of legitimate users. No public exploits have been reported yet, but the presence of this vulnerability in an ecommerce platform poses a significant risk to customer data and trust. The vulnerability was published on December 24, 2025, with no patches currently linked, emphasizing the need for proactive mitigation.

For European organizations operating ecommerce platforms using Gift Hunt, this vulnerability threatens the confidentiality and integrity of customer data and transactions. Attackers exploiting the stored XSS could hijack user sessions, steal credentials, or manipulate user interactions, leading to financial fraud, reputational damage, and regulatory non-compliance under GDPR. The medium severity indicates a moderate risk, but the ecommerce context elevates the importance of timely remediation. The vulnerability could also facilitate further attacks such as phishing or malware distribution targeting European customers. Given the interconnected nature of ecommerce supply chains, exploitation could have cascading effects on partners and service providers. Organizations in Europe must consider the potential impact on customer trust and legal obligations related to data protection and breach notification.

European organizations should implement a multi-layered approach to mitigate this vulnerability. Immediate steps include applying strict input validation on all user-supplied data fields to reject or sanitize potentially malicious content. Employ context-aware output encoding (e.g., HTML entity encoding) when rendering user input in web pages to prevent script execution. Use Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts. Monitor and audit logs for unusual activities indicative of exploitation attempts. Since no official patches are currently available, organizations should engage with the Gift Hunt vendor for updates and consider temporary workarounds such as disabling or restricting features that accept user-generated content. Additionally, educate users and administrators about the risks of XSS and encourage cautious behavior regarding suspicious links or inputs. Regular security testing, including automated scanning and manual code reviews, should be conducted to detect similar vulnerabilities proactively.