CVE-2025-49422 is a Cross-site Scripting (XSS) vulnerability classified under CWE-79, specifically a DOM-Based XSS affecting the Aelora iframe Wrapper product up to version 0.1.1. This vulnerability arises from improper neutralization of input during web page generation, allowing malicious scripts to be injected and executed in the context of the victim's browser. The iframe Wrapper component is used to embed external content within web pages, and the flaw permits an attacker to manipulate the Document Object Model (DOM) in such a way that untrusted input is executed as code. The vulnerability requires low attack complexity (AC:L) but does require privileges (PR:L) and user interaction (UI:R), indicating that an attacker must have some level of access and trick a user into triggering the exploit. The CVSS score of 6.5 (medium severity) reflects the combined impact on confidentiality, integrity, and availability, with a scope change (S:C) meaning the vulnerability affects components beyond the initially vulnerable component. Although no known exploits are currently in the wild, the vulnerability poses a significant risk if weaponized, especially in environments where the iframe Wrapper is used to display dynamic or user-generated content. The lack of available patches at the time of publication increases the urgency for mitigation.

For European organizations, this vulnerability could lead to unauthorized disclosure of sensitive information, session hijacking, or manipulation of web application behavior, potentially compromising user data and trust. Given the widespread use of iframe wrappers in web applications for embedding third-party content, exploitation could affect sectors such as finance, healthcare, and government services that rely on secure web portals. The scope change in the vulnerability means that the impact could extend beyond the iframe Wrapper itself, potentially affecting other integrated systems or services. This could result in data leakage, unauthorized actions performed on behalf of users, or disruption of service availability. The requirement for user interaction means phishing or social engineering could be used to exploit this vulnerability, increasing the risk to end-users and organizations. The medium severity rating suggests a moderate but non-trivial risk that should be addressed promptly to avoid escalation or chaining with other vulnerabilities.

European organizations should implement the following specific mitigations: 1) Immediately review and restrict the use of the Aelora iframe Wrapper, especially in contexts where untrusted input is embedded. 2) Employ Content Security Policy (CSP) headers to restrict the execution of inline scripts and limit the sources of executable scripts to trusted domains. 3) Sanitize and validate all inputs that are used within the iframe Wrapper context to ensure no malicious scripts can be injected. 4) Monitor user interactions and logs for unusual activity that could indicate attempted exploitation. 5) Where possible, replace or upgrade the iframe Wrapper component to a version without this vulnerability once a patch is released. 6) Educate users about the risks of interacting with suspicious links or content that could trigger the vulnerability. 7) Utilize web application firewalls (WAFs) with rules designed to detect and block XSS payloads targeting this specific vulnerability. These measures go beyond generic advice by focusing on controlling input sources, enforcing strict content policies, and proactive monitoring tailored to the nature of the iframe Wrapper usage.