Quick answers
- Is CVE-2025-65594 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2025-65594 being exploited in the wild.
- How severe is CVE-2025-65594?
- High severity, with a CVSS score of 8.1, published 9 December 2025.
- Which products and versions are affected?
- OS4ED Opensis 9.2 and below.
- Is there a fix for CVE-2025-65594?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2025-65594 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2025-65594?
- Check whether you run OS4ED Opensis at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An improper access control vulnerability exists in the 'Student.php' component of openSIS versions 9.2 and earlier. The flaw allows an authenticated attacker with low-level privileges to bypass authorization checks and perform unauthorized database write operations. By manipulating requests to the affected script, an attacker can modify data belonging to other users. The attack is reachable over the network and does not require user interaction, though it does require valid low-privileged credentials. A proof-of-concept has been identified in public repositories.
Affected products
- OS4ED openSIS 9.2 and below
Timeline
- 2025-12-09: disclosed
- 2025-12-09: advisory