CVE-2025-15248 is a cross-site scripting vulnerability discovered in the sunhailin12315 product-review 商品评价系统, a system used for managing product reviews. The vulnerability resides in the 'Write a Review' component, where the 'content' argument is insufficiently sanitized, allowing attackers to inject malicious JavaScript code. This flaw can be exploited remotely without authentication but requires user interaction, such as a victim clicking a crafted link or visiting a malicious page. The vulnerability is present up to the specific commit version 91ead6890b4065bb45b7602d0d73348e75cb4639. The product uses a rolling release strategy, but the vendor has not yet responded to the issue report or released a patch. The CVSS 4.0 base score is 5.1 (medium severity), reflecting network attack vector, low attack complexity, no privileges required, but user interaction needed, and limited impact on confidentiality and integrity. Public exploit code has been released, increasing the likelihood of exploitation. The vulnerability could lead to session hijacking, credential theft, or defacement of the review system, undermining user trust and data integrity. No known exploits in the wild have been reported yet, but the availability of proof-of-concept code raises concern. The lack of vendor response and patch availability means organizations must implement interim mitigations.

For European organizations, the impact of this XSS vulnerability includes potential compromise of user sessions, theft of sensitive information such as cookies or credentials, and manipulation or defacement of product reviews. This can damage brand reputation, reduce customer trust, and potentially lead to further attacks if attackers leverage stolen session tokens to escalate privileges. E-commerce platforms and businesses relying on user-generated content are particularly at risk. The vulnerability could also facilitate phishing attacks by injecting malicious scripts that redirect users to fraudulent sites. While the direct impact on system availability is low, the integrity and confidentiality of user data are at risk. Organizations failing to address this vulnerability may face regulatory scrutiny under GDPR if personal data is compromised. The public availability of exploit code increases the risk of opportunistic attacks, especially against less-secured or unpatched deployments.

Given the absence of an official patch, European organizations should implement immediate mitigations including: 1) Applying strict input validation and output encoding on the 'content' field in the review submission process to neutralize malicious scripts. 2) Deploying or tuning Web Application Firewalls (WAFs) to detect and block common XSS payloads targeting this component. 3) Implementing Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. 4) Conducting regular security audits and penetration testing focused on user input handling in the review system. 5) Monitoring logs for suspicious activities related to review submissions. 6) Engaging with the vendor or community to track patch releases or updates. 7) Educating users about the risks of clicking untrusted links and encouraging cautious behavior. 8) Considering temporary disabling or restricting the review submission feature if feasible until a patch is available.