CVE-2025-62020 is a cross-site scripting (XSS) vulnerability identified in Infomaniak Network's VOD Infomaniak product, specifically in versions up to and including 1.5.11. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, which allows attackers to inject malicious JavaScript code into pages viewed by other users. This type of vulnerability is classified as reflected or stored XSS depending on the context, but the details suggest it occurs during page generation, likely enabling persistent or reflected XSS attacks. The CVSS 3.1 base score of 7.1 indicates a high-severity issue with the following vector: network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), scope changed (S:C), and low impact on confidentiality, integrity, and availability (C:L/I:L/A:L). The scope change means the vulnerability affects resources beyond the initially vulnerable component, potentially impacting the entire application or user session. Exploiting this vulnerability could allow attackers to execute arbitrary scripts in the context of the victim's browser session, leading to session hijacking, defacement, or redirection to malicious sites. Although no known exploits are currently reported in the wild, the presence of this vulnerability in a widely used video-on-demand platform poses a significant risk. The vulnerability was reserved on October 7, 2025, and published on October 22, 2025, with no patch links currently available, indicating that remediation may still be pending or in progress. The lack of patches increases the urgency for organizations to implement interim mitigations and monitor for suspicious activity.

For European organizations, the impact of CVE-2025-62020 can be substantial, particularly for those operating or relying on the VOD Infomaniak platform for media streaming and content delivery. Successful exploitation can lead to unauthorized access to user sessions, theft of sensitive information such as authentication tokens, and manipulation of displayed content, undermining user trust and service integrity. This can result in reputational damage, regulatory penalties under GDPR for data breaches, and potential financial losses. Additionally, attackers could leverage the vulnerability to distribute malware or conduct phishing attacks targeting European users. The scope change in the vulnerability means that the attack can affect components beyond the initial vulnerable module, potentially compromising broader parts of the application or network. Given the high connectivity and reliance on digital media services in Europe, especially in countries with advanced digital infrastructure, the threat is significant. The absence of known exploits in the wild provides a window for proactive defense, but the lack of patches necessitates immediate mitigation efforts to reduce exposure.

To mitigate CVE-2025-62020 effectively, European organizations should implement a multi-layered approach: 1) Apply patches from Infomaniak Network as soon as they become available; monitor vendor communications closely. 2) Implement strict input validation on all user-supplied data to ensure that potentially malicious scripts are neutralized before processing. 3) Employ comprehensive output encoding/escaping techniques when rendering user input in web pages to prevent script execution. 4) Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. 5) Conduct regular security audits and penetration testing focused on web application vulnerabilities, including XSS. 6) Educate users and administrators about the risks of clicking on suspicious links and recognizing phishing attempts. 7) Monitor web application logs and network traffic for unusual activity indicative of exploitation attempts. 8) Consider using web application firewalls (WAFs) with rules specifically designed to detect and block XSS payloads targeting VOD Infomaniak. 9) Isolate the VOD platform within segmented network zones to limit lateral movement if compromised. These measures, combined with timely patching, will reduce the risk and potential impact of this vulnerability.