SQL Injection in Real Estate Services Parameter Handling

A weakness has been identified in code-projects Real State Services 1.0. Impacted is an unknown function of the file /single-list_sale.php?action=add. Executing a manipulation of the argument ID can lead to sql injection. The attack can be executed 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 322matched 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-2026-13559 represents a critical SQL injection vulnerability in Real Estate Services 1.0, specifically within the /single-list_sale.php file's add action handler. By manipulating the ID parameter, attackers can inject arbitrary SQL commands directly into database queries, potentially leading to unauthorized data access, modification, or deletion. This vulnerability affects any organization deploying this real estate management software, putting customer data, property listings, and transaction records at immediate risk. The public availability of exploit code significantly elevates threat likelihood, making this a high-priority remediation target despite not yet appearing in active exploitation campaigns tracked by CISA.

Casky's 322 matching skills leverage Claude's extended reasoning to correlate this vulnerability with MITRE ATT&CK techniques TA0001 (Reconnaissance) and TA0043 (Reconnaissance - part of the full attack lifecycle). Practitioners monitoring their environment would identify attack patterns including: suspicious database query strings containing SQL syntax in web logs, unusual parameter encoding in /single-list_sale.php requests, database connection spikes from web application processes, and attempts to extract system metadata through UNION-based or time-based injection techniques. The skills map CWE-74 (Improper Neutralization of Special Elements) and CWE-89 (SQL Injection) to specific detection signatures, enabling security teams to spot reconnaissance probes testing parameter boundaries, as well as exploitation attempts before data exfiltration occurs. This multi-layered skill mapping helps practitioners distinguish between benign traffic and genuine attack chain activity.

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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 →

322 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-13559.

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

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MITRE ATT&CK Techniques

TA0001 TA0043

Investigate the attack patterns behind CVE-2026-13559

Casky has 322 skills that investigate the attack patterns behind CVE-2026-13559. Run one and get CVSS-scored findings in 3 minutes.

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