CVE-2025-28930 identifies a stored cross-site scripting (XSS) vulnerability in the List Mixcloud application developed by Rodolphe MOULIN, affecting all versions up to 1.4. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, which allows attackers to inject malicious JavaScript code that is persistently stored on the server. When other users access the affected pages, the malicious scripts execute in their browsers within the security context of the vulnerable site. This can lead to session hijacking, credential theft, unauthorized actions on behalf of users, or delivery of further malware. The vulnerability does not require authentication to exploit, increasing its risk profile, and does not currently have a CVSS score or known exploits in the wild. However, stored XSS is a well-known and dangerous class of vulnerabilities due to its persistence and impact. The lack of patches or mitigations listed suggests that users of List Mixcloud must proactively apply secure coding practices or seek vendor updates once available. The vulnerability affects web applications that rely on List Mixcloud for content management or media listing, making it relevant to organizations using this software or similar platforms.

The impact of CVE-2025-28930 can be significant for organizations using List Mixcloud, as stored XSS vulnerabilities allow attackers to execute arbitrary scripts in the context of legitimate users. This can lead to theft of sensitive information such as session cookies, personal data, or credentials, enabling further compromise of user accounts and systems. Attackers may also perform unauthorized actions on behalf of users, deface websites, or distribute malware. The persistence of the injected payload increases the window of exposure and potential damage. For organizations, this can result in data breaches, reputational damage, regulatory penalties, and operational disruptions. Since the vulnerability does not require authentication, it can be exploited by remote attackers with minimal barriers, increasing the likelihood of attacks. The absence of known exploits in the wild currently limits immediate risk but does not diminish the potential severity once exploitation techniques become public.

To mitigate CVE-2025-28930, organizations should implement strict input validation and sanitization on all user-supplied data before it is stored or rendered in web pages. Employing context-aware output encoding (e.g., HTML entity encoding) when displaying user input prevents execution of injected scripts. Utilizing security frameworks or libraries that automatically handle XSS protections is recommended. Web application firewalls (WAFs) can provide an additional layer of defense by detecting and blocking malicious payloads targeting XSS vulnerabilities. Monitoring and logging web application activity can help detect attempted exploitation. Organizations should track vendor updates or patches for List Mixcloud and apply them promptly once available. If immediate patching is not possible, consider disabling or restricting features that accept user input or limit exposure to untrusted users. Conducting regular security assessments and penetration testing focused on XSS can help identify and remediate similar issues proactively.