Quick answers
- Is CVE-2026-103116 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-103116 being exploited in the wild.
- How severe is CVE-2026-103116?
- 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-2026-103116?
- 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-2026-103116 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-103116?
- 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
The vulnerability exists in the LO_sort parameter of the student list search endpoint (modules/grades/EditReportCardGrades.php), which is concatenated directly into an ORDER BY clause without validation or sanitization. An authenticated teacher can inject arbitrary SQL expressions that are evaluated by the database, enabling both time-based blind injection and error-based data extraction. The attack requires valid teacher credentials and normal course scheduling data.
Affected products
- OS4ED openSIS-Classic up to 9.3
Timeline
- 2026-09-30: disclosed: Published on NVD
- 2026-09-01: other: Issue reported to project on GitHub (#476)