CVE-2025-65594: OS4ED Opensis

High severity, CVSS 8.1. EPSS: 0.3% chance of exploitation in the next 30 days.

OpenSIS 9.2 and below is vulnerable to Incorrect Access Control in Student.php, which allows an authenticated low-privilege user to perform unauthorized database write operations relating to the data of other users.

Affected products

• OS4ED Opensis: up to and including 9.2

Published 2025-12-09. Last modified 2026-07-05.