CVE-2026-3261: itsourcecode school_management_system Injection

Vulnerability summary

CVE-2026-3261 is a critical (CVSS 9.8) Injection vulnerability in itsourcecode school_management_system. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 26-02-2026
   PublishedVulnerability first disclosed.
2. 27-02-2026
   Last modifiedVulnerability information updated.

Description

A flaw has been found in itsourcecode School Management System 1.0. This impacts an unknown function of the file /settings/index.php of the component Setting Handler. This manipulation of the argument ID causes sql injection. The attack may be initiated remotely. The exploit has been published and may be used.

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
• CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.