CVE-2025-30315 is a stored Cross-Site Scripting (XSS) vulnerability affecting Adobe Connect versions 12.8 and earlier. This vulnerability arises from insufficient input sanitization in certain form fields within the Adobe Connect web application, allowing an attacker to inject malicious JavaScript code that is stored persistently on the server. When a victim user accesses the affected page containing the injected script, the malicious code executes in their browser context. This can lead to unauthorized actions such as session hijacking, credential theft, or performing actions on behalf of the user within the Adobe Connect environment. The vulnerability is classified under CWE-79, which covers improper neutralization of input during web page generation. The CVSS v3.1 base score is 6.1, indicating a medium severity level. The vector string (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) shows that the attack can be launched remotely over the network without privileges, requires user interaction (visiting the malicious page), and impacts confidentiality and integrity with a scope change, but does not affect availability. No known exploits are reported in the wild yet, and no official patches have been linked at the time of publication. The vulnerability was reserved in March 2025 and published in May 2025, indicating recent discovery and disclosure. Adobe Connect is widely used for web conferencing, online meetings, and remote collaboration, making this vulnerability relevant for organizations relying on this platform for communication and training.

For European organizations, the impact of this stored XSS vulnerability in Adobe Connect can be significant, particularly for entities that use the platform extensively for internal and external communications, training, and collaboration. Exploitation could lead to unauthorized access to sensitive meeting content, interception of user credentials, and potential lateral movement within corporate networks if session tokens or cookies are stolen. Confidentiality of proprietary or personal data shared during meetings could be compromised. Integrity of communications and user actions within Adobe Connect could be manipulated, undermining trust in the platform. Although availability is not directly impacted, the reputational damage and potential regulatory consequences under GDPR for data breaches involving personal data could be severe. The requirement for user interaction (clicking or visiting a malicious link) means social engineering or phishing campaigns could be used to trigger exploitation. Given the widespread adoption of Adobe Connect in sectors such as education, government, and enterprise across Europe, the vulnerability poses a tangible risk to operational security and compliance.

To mitigate this vulnerability effectively, European organizations should: 1) Immediately monitor Adobe’s official channels for patches or updates addressing CVE-2025-30315 and apply them promptly once available. 2) Implement strict input validation and output encoding on all user-supplied data fields within Adobe Connect customizations or integrations to reduce injection risk. 3) Employ Content Security Policy (CSP) headers to restrict execution of unauthorized scripts in browsers accessing Adobe Connect. 4) Educate users about the risks of clicking unknown or suspicious links, especially those purporting to be meeting invitations or notifications. 5) Use web application firewalls (WAFs) with rules tailored to detect and block common XSS attack patterns targeting Adobe Connect endpoints. 6) Conduct regular security assessments and penetration testing on Adobe Connect deployments to identify and remediate any additional injection points. 7) Limit exposure by restricting Adobe Connect access to trusted networks or VPNs where feasible, reducing the attack surface. 8) Monitor logs and user activity for anomalous behavior indicative of exploitation attempts. These measures, combined with timely patching, will reduce the risk of successful exploitation and limit potential damage.