CVE-2025-8887 is a vulnerability classified under CWE-639 (Authorization Bypass Through User-Controlled Key), CWE-862 (Missing Authorization), and CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) affecting the Aybs Interaktif product by Usta Information Systems Inc., specifically version 2024. The flaw allows an attacker with low privileges (PR:L) to bypass authorization mechanisms by manipulating user-controlled keys or parameters, leading to unauthorized access to sensitive information. The attack vector is local (AV:L), requiring the attacker to have some level of access to the system but no user interaction (UI:N) is needed to exploit the vulnerability. The vulnerability enables forceful browsing and parameter injection, which are techniques that allow attackers to access resources or data beyond their authorization scope by manipulating URLs or input parameters. The CVSS 3.1 base score is 6.1, indicating a medium severity level, with a high impact on confidentiality (C:H), low impact on integrity (I:L), and no impact on availability (A:N). No patches or known exploits are currently available, but the vulnerability is publicly disclosed and should be addressed promptly. The issue affects versions from 2024 through 28082025, suggesting a long window of vulnerability if unpatched.

For European organizations, the primary impact of CVE-2025-8887 is the unauthorized exposure of sensitive information, which can lead to data breaches, loss of intellectual property, and regulatory non-compliance, especially under GDPR. The medium severity score reflects that while the vulnerability does not directly affect system availability or integrity significantly, the confidentiality breach can have severe consequences, including reputational damage and financial penalties. Organizations relying on Aybs Interaktif for critical business operations or handling sensitive personal or corporate data are at heightened risk. The local attack vector means internal threat actors or compromised users could exploit this vulnerability, emphasizing the need for strong internal security controls. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, as attackers may develop exploits following public disclosure.

1. Implement strict access control policies limiting user privileges to the minimum necessary, reducing the risk of local attackers exploiting the vulnerability. 2. Conduct thorough input validation and sanitization on all user-controlled keys and parameters to prevent parameter injection and forceful browsing attempts. 3. Monitor and audit access logs for unusual browsing patterns or unauthorized access attempts that may indicate exploitation attempts. 4. Segregate critical systems and sensitive data to limit exposure in case of an authorization bypass. 5. Engage with Usta Information Systems Inc. for timely patches or updates addressing this vulnerability and apply them promptly once available. 6. Employ runtime application self-protection (RASP) or web application firewalls (WAF) configured to detect and block suspicious parameter manipulation. 7. Educate internal users about the risks of privilege misuse and enforce strict authentication and session management practices to prevent privilege escalation.