Unauthenticated SQL Injection in Rest Routes WordPress Plugin

The Rest Routes WordPress plugin through 5.5.5 does not sanitize and validate a value taken from the URL of one of its public REST routes before using it in a SQL query, allowing unauthenticated attackers to perform SQL injection 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

The Rest Routes WordPress plugin versions through 5.5.5 contain a critical SQL injection vulnerability in its public REST API endpoints. An attacker can inject malicious SQL code through unsanitized URL parameters without requiring authentication, potentially gaining unauthorized access to sensitive database information, modifying data, or escalating privileges. This vulnerability affects any WordPress installation running the affected plugin version, making it a high-impact threat to website owners who rely on this plugin for REST API functionality. With a CVSS score of 8.6, this represents a severe risk that can be exploited at scale across vulnerable WordPress deployments.

Casky.ai's 323 matched security skills leverage Claude's extended reasoning to detect this attack pattern by analyzing data flow through REST API handlers and identifying unsanitized user inputs flowing directly into SQL queries—the core indicators of CWE-89 (SQL Injection). Practitioners using Casky would observe findings mapped to MITRE ATT&CK techniques TA0001 (Reconnaissance) where attackers probe REST endpoints for injection points, and TA0043 (Exfiltration) where successful injection extracts database contents. The platform would flag suspicious URL parameter patterns, trace unsafe query construction, and correlate these with known exploitation signatures, enabling security teams to identify compromised instances, locate vulnerable plugin installations, and prioritize patching efforts before attackers leverage this publicly-known vulnerability.

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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-2026-16061.

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

Investigate the attack patterns behind CVE-2026-16061

Casky has 323 skills that investigate the attack patterns behind CVE-2026-16061. Run one and get CVSS-scored findings in 3 minutes.

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