CVE-2026-103115 Details
Description
A security flaw has been discovered in OS4ED openSIS-Classic up to 9.3. This affects an unknown function of the file functions/CustomFieldsFnc.php of the component Student Search. The manipulation of the argument cust results in sql injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
A SQL injection vulnerability has been identified in OS4ED openSIS-Classic versions through 9.3. The issue resides in the Student Search component, specifically within the file functions/CustomFieldsFnc.php. The vulnerability is triggered by manipulating the 'cust' argument, allowing for remote exploitation. This flaw was reported to the project, but no response has been received yet.
It is recommended to use parameterized queries or prepared statements for database interactions, particularly when handling user input. Additionally, custom field titles should be validated against a strict whitelist of allowed characters before being saved to the database.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 30, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/OS4ED/openSIS-Classic/ | [email protected] | Vendor |
| https://github.com/OS4ED/openSIS-Classic/issues/475 | [email protected] | ExploitIssue TrackingTechnical AnalysisVendor |
| https://vuldb.com/cve/CVE-2026-103115 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/954961 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/411871 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/411871/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-89 | Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| OS4ED openSIS-Classic | <= 9.3 |
CPE
Remediation
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Change History
1 change record found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 30, 2026 | New CVE Received | [email protected] |