CVE-2025-65594 describes an incorrect access control vulnerability in OpenSIS 9.2 and earlier. Specifically, the Student.php file does not properly restrict database write operations, enabling authenticated low-privilege users to modify data of other users without authorization. This vulnerability is classified under CWE-284 (Improper Access Control) and has a CVSS v3.1 base score of 8.1, reflecting high impact on confidentiality and integrity. There is no information about available patches or vendor advisories, and no known exploits in the wild have been reported.

An attacker with valid low-privilege credentials can exploit this vulnerability to write unauthorized data to the database, potentially altering or corrupting other users' data. This compromises confidentiality and integrity of the affected system's data. Availability is not impacted according to the CVSS vector.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to trusted users only and monitor for suspicious activity related to database write operations in Student.php. Avoid granting unnecessary privileges to users.