SQL Injection in Class and Exam Timetabling System

A vulnerability has been found in SourceCodester Class and Exam Timetabling System 1.0. This affects the function mysqli_query of the file /admin/modal_add_course2.php. Such manipulation of the argument course leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Casky was already ahead

This CVE exploits attack patterns that Casky's 323matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

CVE-2026-86222 is a remote SQL injection vulnerability in SourceCodester's Class and Exam Timetabling System 1.0, specifically in the course parameter handling of /admin/modal_add_course2.php. This vulnerability allows unauthenticated attackers to manipulate SQL queries by injecting malicious code through the course argument, potentially leading to unauthorized data access, modification, or deletion of the entire database. Educational institutions and administrative staff using this system are directly at risk, as attackers can compromise sensitive student records, course schedules, and institutional data without requiring physical access or elevated privileges.

Casky's 323 matched skills leverage Claude's extended reasoning to map this vulnerability across MITRE ATT&CK's Resource Development (TA0001) and Reconnaissance (TA0043) techniques, revealing attack progression patterns. Practitioners using Casky will observe detection findings that correlate CWE-74 (Improper Neutralization of Special Elements) and CWE-89 (SQL Injection) with pre-attack reconnaissance activities—such as parameter probing and SQL syntax testing—that precede exploitation. The platform identifies the characteristic attack chain: initial reconnaissance of the vulnerable endpoint, followed by crafted POST requests containing SQL metacharacters in the course parameter, enabling practitioners to detect anomalous database query patterns and unauthorized administrative function calls before data exfiltration occurs.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

323 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-86222.

Abuse of Public-Facing API: Mobile API Abuse

mobile security · low

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abusing-dpapi-for-credential-access

red teaming · high

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abusing-shadow-credentials-for-privesc

red teaming · high

Run

MITRE ATT&CK Techniques

TA0001 TA0043

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