SQL Injection in Class and Exam Timetabling System

A security flaw has been discovered in SourceCodester Class and Exam Timetabling System 1.0. This impacts an unknown function of the file /delete_teacher.php. The manipulation of the argument ID results in sql injection. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.

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-2026-86208 represents a critical SQL injection vulnerability in SourceCodester's Class and Exam Timetabling System version 1.0, specifically within the /delete_teacher.php endpoint. By manipulating the ID parameter, unauthenticated attackers can inject malicious SQL commands to extract, modify, or delete sensitive educational data. This vulnerability poses significant risk to educational institutions relying on this system for administrative functions, as it enables remote exploitation without authentication. With public exploit code available, the threat landscape is actively dangerous, making immediate patching essential for any organization using affected versions.

Casky's 323 matched skills leverage Claude AI's extended reasoning to identify attack patterns aligned with MITRE ATT&CK's Initial Access (TA0001) and Resource Development (TA0043) techniques. Practitioners using Casky would observe detection patterns focusing on: (1) anomalous parameter manipulation in HTTP requests to /delete_teacher.php with SQL syntax indicators (quotes, operators, comments), (2) database query analysis revealing injected commands attempting unauthorized data access or modification, and (3) reconnaissance footprints where attackers probe the endpoint before launching payload delivery. The platform's skill mapping enables security teams to correlate SQL injection attack chains with adversary tactics, revealing how initial access exploits chain into post-compromise persistence and lateral movement activities across their timetabling infrastructure.

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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-2026-86208.

Abuse of Public-Facing API: Mobile API Abuse

mobile security · low

Run

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

MITRE ATT&CK Techniques

TA0001 TA0043

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