SQL Injection in Online Voting System Category Parameter

A weakness has been identified in SourceCodester Online Voting System 1.0. This affects an unknown function of the file /voting/ajax.php?action=save_category. This manipulation of the argument Category causes sql injection. The attack can be initiated remotely. The exploit has been made available to the public and could 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-2026-86290 represents a critical SQL injection vulnerability in SourceCodester Online Voting System 1.0, specifically within the /voting/ajax.php endpoint's category save function. An attacker can manipulate the Category parameter to execute arbitrary SQL commands, potentially leading to unauthorized data access, modification, or deletion of voting records and system data. This vulnerability is particularly concerning because voting systems are high-value targets for integrity attacks, and the publicly available exploit significantly increases the risk of active exploitation. Organizations deploying this voting system—including educational institutions, municipalities, and corporate environments—face immediate threats to their election integrity and data confidentiality.

Casky's 323 matched security skills, powered by Claude's extended reasoning capabilities, detect the attack patterns underlying this vulnerability by mapping to MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance). The platform identifies SQL injection indicators such as unsanitized user input flowing directly into database queries, improper parameterization in AJAX handlers, and suspicious SQL syntax patterns in HTTP parameters. Practitioners using Casky would observe detection findings highlighting: (1) unsafe parameter handling in PHP request processing, (2) absence of input validation and prepared statements in the save_category function, and (3) CWE-89 violations indicating improper neutralization of special SQL elements. These skill associations enable security teams to quickly correlate CVE-2026-86290 with their broader threat landscape and prioritize remediation of similar injection patterns across their 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-2026-86290.

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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