CVE-2025-47625 is a medium-severity vulnerability classified under CWE-79, which pertains to improper neutralization of input during web page generation, commonly known as Cross-site Scripting (XSS). Specifically, this vulnerability affects the product 'DoFollow Case by Case' developed by apasionados, up to version 3.5.1. The vulnerability is a Stored XSS, meaning that malicious scripts injected by an attacker are permanently stored on the target server (e.g., in a database, message forum, visitor log, comment field, etc.) and then served to users when they access the affected content. The CVSS 3.1 score is 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 high privileges (PR:H) and user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability affects resources beyond the initially vulnerable component. The impact metrics indicate low confidentiality, integrity, and availability impacts (C:L/I:L/A:L). Stored XSS vulnerabilities can allow attackers to execute arbitrary JavaScript in the context of users’ browsers, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. The requirement for high privileges and user interaction reduces the ease of exploitation but does not eliminate risk, especially in environments where privileged users interact with untrusted content or external inputs. No patches or known exploits in the wild have been reported at the time of publication (May 7, 2025).

For European organizations, the impact of this Stored XSS vulnerability depends largely on the deployment context of the DoFollow Case by Case product. If used in public-facing web applications or internal tools accessed by privileged users, exploitation could lead to unauthorized actions, data leakage, or session compromise. Given the requirement for high privileges, attackers would likely need to have some level of access already, which could be leveraged to escalate privileges or move laterally within an organization. The change in scope (S:C) suggests that exploitation could affect multiple components or users beyond the initially vulnerable module, increasing potential damage. Confidentiality, integrity, and availability impacts are low but non-negligible, especially if sensitive user data or administrative functions are exposed. European organizations must consider compliance with GDPR and other data protection regulations, as exploitation leading to data breaches could result in regulatory penalties and reputational damage. The lack of known exploits reduces immediate risk but should not lead to complacency, as attackers may develop exploits over time.

1. Implement strict input validation and output encoding on all user-supplied data within the DoFollow Case by Case application, especially in areas where content is stored and later rendered in web pages. 2. Apply the principle of least privilege to limit the number of users with high privileges, reducing the attack surface. 3. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. 4. Monitor and audit user inputs and application logs for suspicious activity that could indicate attempted exploitation. 5. If possible, isolate the affected application or restrict access to trusted users until a patch or update is available. 6. Engage with the vendor or community to obtain or develop patches addressing this vulnerability. 7. Educate privileged users about the risks of interacting with untrusted content and encourage safe browsing and operational practices. 8. Use web application firewalls (WAFs) with rules designed to detect and block XSS payloads targeting this product. 9. Regularly scan the application with automated tools to detect XSS and other injection vulnerabilities proactively.