Quick answers
- Is CVE-2026-103115 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-103115 being exploited in the wild.
- How severe is CVE-2026-103115?
- Medium severity, with a CVSS score of 6.3, published 30 September 2026.
- Which products and versions are affected?
- OS4ED openSIS Classic up to 9.3.
- Is there a fix for CVE-2026-103115?
- 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-2026-103115 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-103115?
- Check whether you run OS4ED openSIS Classic 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
A second-order SQL injection exists in the Student Search component (functions/CustomFieldsFnc.php) where the cust parameter is not properly sanitized before being concatenated into SQL UPDATE statements. An admin can inject payload through the custom student fields editor which persists in the database and triggers when any user searches students. The vulnerability requires administrative access for the initial injection but allows privilege escalation to impact lower-privileged users.
Affected products
- OS4ED openSIS-Classic up to 9.3
Timeline
- 2026-09-01: disclosed: Vulnerability reported via GitHub issue #475
- 2026-09-30: advisory: Public advisory published