CVE-2025-58015 is a vulnerability identified in the Ays Pro Quiz Maker software, specifically affecting versions up to 6.7.0.61. The vulnerability is classified under CWE-497, which pertains to the Exposure of Sensitive System Information to an Unauthorized Control Sphere. This means that the software improperly exposes embedded sensitive data to unauthorized users or processes, potentially allowing attackers to retrieve confidential information without authentication or user interaction. The CVSS v3.1 base score is 5.3, indicating a medium severity level. The vector string (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) reveals that the vulnerability is remotely exploitable over the network without any privileges or user interaction required, but the impact is limited to confidentiality loss only, with no impact on integrity or availability. The vulnerability does not currently have any known exploits in the wild, and no patches have been linked or published at this time. The exposure of sensitive embedded data could include configuration details, credentials, or other internal system information that could be leveraged in further attacks or reconnaissance. Since the vulnerability is in a quiz maker application, it is likely used in educational or corporate training environments, where sensitive user or organizational data might be stored or processed. The lack of authentication and user interaction requirements increases the risk of automated scanning and exploitation attempts if the software is accessible over the internet or internal networks.

For European organizations, the exposure of sensitive system information through this vulnerability could lead to unauthorized disclosure of confidential data, potentially including user information, internal configurations, or intellectual property embedded within the Quiz Maker application. This could facilitate further targeted attacks such as phishing, social engineering, or lateral movement within networks. Educational institutions, corporate training departments, and any organizations using Ays Pro Quiz Maker to deliver assessments or training could be at risk. The confidentiality breach may also lead to regulatory compliance issues under GDPR, especially if personal data is exposed. Although the vulnerability does not directly affect system integrity or availability, the information leakage could undermine trust and lead to reputational damage. The medium severity rating reflects the limited scope of impact but acknowledges the ease of exploitation and the potential for sensitive data exposure.

Given the absence of an official patch, European organizations should take immediate steps to mitigate risk. First, restrict network access to the Quiz Maker application by implementing strict firewall rules and network segmentation to limit exposure to trusted internal users only. Conduct a thorough inventory to identify all instances of Ays Pro Quiz Maker in use and assess their exposure. Employ application-layer access controls and authentication mechanisms if configurable, to prevent unauthorized access to sensitive data. Monitor network traffic and application logs for unusual access patterns or data retrieval attempts. If possible, disable or remove any features that embed sensitive data within the application until a patch is available. Engage with the vendor to obtain timelines for a security update or workaround. Additionally, educate users and administrators about the risk and encourage vigilance against phishing or social engineering attacks that could leverage leaked information. Finally, consider deploying web application firewalls (WAFs) with custom rules to detect and block exploitation attempts targeting this vulnerability.