CVE-2025-54055 is a high-severity reflected Cross-Site Scripting (XSS) vulnerability identified in the skygroup Druco product, affecting versions up to 1.5.2. This vulnerability arises from improper neutralization of input during web page generation, classified under CWE-79. Specifically, the application fails to adequately sanitize or encode user-supplied input before including it in dynamically generated web pages, allowing attackers to inject malicious scripts. When a victim interacts with a crafted URL or input, the malicious script executes in their browser context, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. The CVSS 3.1 base score of 7.1 reflects a network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R). The scope is changed (S:C), indicating that the vulnerability affects resources beyond the vulnerable component. The impact on confidentiality, integrity, and availability is rated as low to low to low, respectively, but the overall risk remains high due to the ease of exploitation and potential for chaining with other attacks. No known exploits are currently reported in the wild, and no patches have been linked yet, indicating that organizations using Druco should prioritize monitoring and mitigation efforts. The vulnerability's presence in a web-facing application component makes it a significant threat vector for web application security.

For European organizations, the reflected XSS vulnerability in skygroup Druco poses risks primarily related to user session compromise, data leakage, and potential lateral movement within affected web applications. Organizations relying on Druco for web services may face targeted phishing campaigns leveraging this vulnerability to trick users into clicking malicious links, leading to credential theft or unauthorized transactions. The scope change in the CVSS vector suggests that exploitation could impact other components or services beyond the immediate application, potentially affecting integrated systems. This could disrupt business operations, damage reputation, and lead to regulatory non-compliance under GDPR if personal data is compromised. The impact is particularly critical for sectors with high web interaction volumes, such as finance, healthcare, and public services, where trust and data integrity are paramount. Additionally, the requirement for user interaction means social engineering could amplify the threat, necessitating user awareness and technical controls.

Given the absence of an official patch, European organizations should implement immediate compensating controls. These include deploying Web Application Firewalls (WAFs) with custom rules to detect and block suspicious input patterns indicative of reflected XSS payloads targeting Druco endpoints. Input validation and output encoding should be enforced at the application layer where possible, including sanitizing query parameters and form inputs. Organizations should conduct thorough code reviews and penetration testing focused on input handling in Druco to identify and remediate injection points. User education campaigns to raise awareness about phishing and suspicious links can reduce the likelihood of successful exploitation. Monitoring web server logs for unusual request patterns and implementing Content Security Policy (CSP) headers can help mitigate script execution risks. Finally, organizations should maintain close communication with skygroup for timely patch releases and apply updates promptly once available.