SQL Injection in MetaCRM PHPRPC Remote Call Interface

A weakness has been identified in Metasoft 美特软件 MetaCRM up to 6.4.0 Beta06. This vulnerability affects the function RPCService.query of the file /customizemt/xkq/rpc.jsp of the component PHPRPC Remote Call Interface. Executing a manipulation of the argument phprpc_args can lead to sql injection. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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

Metasoft's MetaCRM versions up to 6.4.0 Beta06 contain a critical SQL injection vulnerability in the PHPRPC Remote Call Interface component. The flaw exists in the RPCService.query function within /customizemt/xkq/rpc.jsp, where unsanitized manipulation of the phprpc_args parameter allows attackers to inject arbitrary SQL commands. This vulnerability is particularly concerning because it requires no authentication, can be exploited remotely, and affects a CRM platform that typically stores sensitive customer and business data. Organizations running vulnerable MetaCRM instances face immediate risk of data exfiltration, unauthorized modification of records, and potential lateral movement within their infrastructure. The vendor's unresponsiveness to early disclosure and the public availability of exploit code significantly elevate the threat level.

Casky's security skill mapping identifies this attack through detection of MITRE ATT&CK techniques TA0001 (Initial Access) and TA0043 (Reconnaissance), correlating with CWE-74 (Improper Neutralization of Special Elements) and CWE-89 (SQL Injection). Practitioners using Casky's 322 matched skills would observe Claude AI flagging suspicious patterns in HTTP requests to the /customizemt/xkq/rpc.jsp endpoint, particularly those containing SQL metacharacters and logic operators embedded in phprpc_args parameters. The platform's extended reasoning capabilities would identify anomalous database query patterns, unusual authentication bypass attempts, and data access requests inconsistent with normal CRM operations. Alerts would correlate request-response timing anomalies with known SQL injection techniques, enabling teams to distinguish between benign API calls and exploitation attempts before data compromise 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 →

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-2026-15514.

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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