CVE-2025-57910 is a stored Cross-site Scripting (XSS) vulnerability classified under CWE-79, affecting the AnyClip Video Platform's product AnyClip Luminous Studio up to version 1.3.3. This vulnerability arises due to improper neutralization of input during web page generation, allowing malicious scripts to be injected and persistently stored within the application. When a user accesses the affected page, the malicious script executes in their browser context. The CVSS 3.1 base score is 6.5 (medium severity), with the vector AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L indicating that the attack can be performed remotely over the network with low attack complexity, requires some privileges and user interaction, and impacts confidentiality, integrity, and availability with a scope change. Stored XSS can lead to session hijacking, credential theft, defacement, or distribution of malware. The vulnerability requires an authenticated user to trigger the exploit, and user interaction is necessary to activate the malicious payload. No known public exploits have been reported yet, and no patches or fixes have been linked at the time of publication.

For European organizations using AnyClip Luminous Studio, this vulnerability poses a risk of client-side attacks that can compromise user sessions, leak sensitive information, and potentially allow attackers to perform actions on behalf of legitimate users. Given the scope change indicated in the CVSS vector, the vulnerability could allow attackers to affect other users beyond the initially compromised account, amplifying the impact. Organizations in sectors such as media, entertainment, education, or marketing that rely on AnyClip's video platform for content delivery and user engagement may face reputational damage, data breaches, or service disruptions. The requirement for authenticated access limits the attack surface but does not eliminate risk, especially in environments with many users or weak access controls. The lack of known exploits in the wild suggests that proactive mitigation is critical to prevent future exploitation.

European organizations should implement the following specific measures: 1) Immediately audit AnyClip Luminous Studio deployments to identify affected versions (up to 1.3.3) and restrict access to trusted users only. 2) Apply strict input validation and output encoding on all user-generated content fields within the platform, especially those that render HTML or JavaScript. 3) Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers accessing the platform. 4) Monitor user activity logs for unusual behavior indicative of XSS exploitation attempts. 5) Enforce multi-factor authentication (MFA) to reduce the risk of compromised credentials being leveraged. 6) Engage with the vendor for patches or updates and plan for timely application once available. 7) Educate users about the risks of clicking on suspicious links or interacting with unexpected content within the platform. 8) Consider deploying web application firewalls (WAFs) with custom rules to detect and block XSS payloads targeting AnyClip Luminous Studio.