CVE-2025-46611 is a Cross Site Scripting (XSS) vulnerability identified in ARTEC EMA Mail version 6.92. This vulnerability allows an attacker to inject and execute arbitrary scripts within the context of the affected web application. XSS vulnerabilities arise when user-supplied input is not properly sanitized or encoded before being included in web pages, enabling malicious scripts to run in the browsers of other users. In this case, the vulnerability permits remote attackers to execute arbitrary code by crafting a malicious script that is processed by the vulnerable ARTEC EMA Mail interface. The CVSS 3.1 base score of 6.1 indicates a medium severity level, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability affects components beyond the initially vulnerable component, and it impacts confidentiality and integrity to a limited extent (C:L/I:L), but does not affect availability (A:N). No patches or vendor advisories are currently available, and there are no known exploits in the wild. The vulnerability is categorized under CWE-79, which is the standard classification for XSS issues. Given the nature of ARTEC EMA Mail as an email management system, exploitation could lead to session hijacking, credential theft, or unauthorized actions performed on behalf of legitimate users, potentially compromising sensitive communications and data.

For European organizations using ARTEC EMA Mail v6.92, this vulnerability poses a risk to the confidentiality and integrity of email communications. Successful exploitation could allow attackers to steal session cookies, impersonate users, or manipulate email content, leading to data leakage or unauthorized actions within the mail system. This is particularly concerning for sectors handling sensitive or regulated data, such as finance, healthcare, and government agencies. The requirement for user interaction means phishing or social engineering tactics could be employed to trigger the exploit. Although availability is not directly impacted, the breach of confidentiality and integrity could result in reputational damage, regulatory penalties under GDPR, and operational disruptions. The absence of known exploits in the wild suggests limited immediate threat, but the public disclosure increases the risk of future exploitation attempts.

European organizations should prioritize the following mitigations: 1) Implement strict input validation and output encoding on all user-supplied data within ARTEC EMA Mail interfaces to prevent script injection. 2) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. 3) Educate users to recognize and avoid suspicious links or email content that could trigger the vulnerability. 4) Monitor web application logs for unusual input patterns or error messages indicative of attempted XSS attacks. 5) If possible, isolate the ARTEC EMA Mail system within a segmented network zone to limit lateral movement in case of compromise. 6) Engage with the vendor or community to obtain patches or updates as they become available and apply them promptly. 7) Consider deploying web application firewalls (WAFs) with rules tailored to detect and block XSS payloads targeting this application. These measures go beyond generic advice by focusing on both technical controls and user awareness specific to the ARTEC EMA Mail environment.