Is CVE-2026-103117 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-103117 being exploited in the wild.

How severe is CVE-2026-103117?

Medium severity, with a CVSS score of 4.7, published 30 September 2026.

Which products and versions are affected?

OS4ED openSIS Classic up to 9.3.

Is there a fix for CVE-2026-103117?

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-2026-103117 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-103117?

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.

CVE-2026-103117: OS4ED openSIS-Classic SQL injection in Save Data Handler

CVE-2026-103117 · Severity: medium · CVSS 4.7 · Published 2026-09-30

openSIS-Classic is a student information system used by schools to manage enrollment and academic data. A SQL injection vulnerability in the student data save function allows an authenticated administrator to extract sensitive database information through time-based attacks, such as student records, staff data, or other institutional information. The vulnerability requires administrative access but poses a risk of unauthorized data exposure within the institution's database.

Technologies: OS4ED openSIS Classic. Vendors: OS4ED.

Quick answers

Is CVE-2026-103117 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-103117 being exploited in the wild.
How severe is CVE-2026-103117?: Medium severity, with a CVSS score of 4.7, published 30 September 2026.
Which products and versions are affected?: OS4ED openSIS Classic up to 9.3.
Is there a fix for CVE-2026-103117?: 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-2026-103117 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-103117?: 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 functions/DatabaseInc.php within the db_properties() function, which concatenates unsanitized POST array keys directly into a SHOW COLUMNS SQL statement. An attacker with administrative credentials can craft a malicious values[] array key containing SQL WHERE clauses with subqueries to perform blind SQL injection. The db_properties() function fails to parameterize or whitelist table names, and error pages echo the full SQL statement, enabling both time-based and error-based injection to exfiltrate arbitrary database content.

Affected products

OS4ED openSIS-Classic up to 9.3

Timeline

2026-09-01: disclosed: Vulnerability reported via GitHub issue #477
2026-09-30: disclosed: CVE-2026-103117 published on NVD

References

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