CVE-2025-64493: SuiteCRM Authenticated SQL Injection Flaw

CVE-2025-64493 Overview

CVE-2025-64493 is an authenticated blind time-based SQL injection vulnerability in SuiteCRM, an open-source enterprise Customer Relationship Management (CRM) application maintained by SalesAgility. The flaw resides in the appMetadata operation of the GraphQL API and affects versions 8.6.0 through 8.9.0. An authenticated user without administrative privileges can inject SQL statements that execute against the backend database. The issue is tracked under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command) and is fixed in version 8.9.1.

Critical Impact
Any authenticated SuiteCRM user can extract arbitrary database contents, including credentials, customer records, and other sensitive CRM data, through the GraphQL appMetadata operation.

Affected Products

SuiteCRM 8.6.0
SuiteCRM 8.7.x and 8.8.x
SuiteCRM 8.9.0

Discovery Timeline

2025-11-08 - CVE-2025-64493 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-64493

Vulnerability Analysis

SuiteCRM exposes a GraphQL API that handles application metadata requests through the appMetadata operation. The operation accepts user-controlled input that is concatenated into a SQL query without proper parameterization or sanitization. An authenticated attacker can supply crafted GraphQL variables that alter the resulting SQL statement.

Because the injection is blind, the API does not return query results directly in the response body. Instead, attackers rely on time-based payloads such as conditional SLEEP() calls to infer data one character at a time. This technique is slow but reliable and can enumerate entire database tables given sufficient time.

The vulnerability does not require administrative privileges. Any valid user session is sufficient, which significantly broadens the attack surface in multi-tenant SuiteCRM deployments where low-privilege sales or support accounts are common.

Root Cause

The root cause is improper neutralization of user input incorporated into a SQL query inside the GraphQL appMetadata resolver. The resolver fails to use prepared statements or an allow-list for the affected parameter, allowing attacker-controlled text to break out of its intended context and modify query logic.

Attack Vector

Exploitation requires network access to the SuiteCRM GraphQL endpoint and valid authentication credentials. The attacker submits a GraphQL mutation or query targeting appMetadata with a payload embedded in a vulnerable argument. The payload uses time-delay primitives to extract data bit by bit via boolean inference.

For technical specifics, see the GitHub Security Advisory GHSA-5gcj-mfqq-v8f7.

Detection Methods for CVE-2025-64493

Indicators of Compromise

Repeated GraphQL requests to the appMetadata operation from a single authenticated session within a short time window.
Request payloads containing SQL keywords such as SLEEP, BENCHMARK, IF(, SELECT, UNION, or SUBSTRING inside GraphQL variables.
Unusually long response times from the GraphQL endpoint, consistent with time-based blind SQL injection probing.
Database query logs showing malformed or deeply nested queries originating from the SuiteCRM application user.

Detection Strategies

Enable verbose logging on the SuiteCRM GraphQL endpoint and parse request bodies for SQL metacharacters in the appMetadata arguments.
Correlate web server access logs with database slow-query logs to identify sessions that trigger repeated multi-second queries.
Deploy a Web Application Firewall (WAF) rule that inspects GraphQL request bodies for SQL injection signatures and time-delay functions.

Monitoring Recommendations

Alert on authenticated users issuing more than a baseline threshold of appMetadata operations per minute.
Monitor outbound data volumes from the SuiteCRM database host for anomalous spikes that may indicate large-scale extraction.
Track failed and successful authentications to SuiteCRM to identify credential-stuffing precursors that enable this vulnerability.

How to Mitigate CVE-2025-64493

Immediate Actions Required

Upgrade SuiteCRM to version 8.9.1 or later, which contains the official fix.
Audit user accounts and remove or disable inactive, shared, or over-permissive accounts that could be abused for authenticated exploitation.
Rotate database credentials and application secrets if exploitation is suspected based on log review.
Review database contents accessible to the SuiteCRM service account for signs of unauthorized enumeration.

Patch Information

SalesAgility released SuiteCRM 8.9.1 to address CVE-2025-64493. The patch applies proper input handling in the GraphQL appMetadata resolver. Administrators should apply the upgrade through the standard SuiteCRM update process. Full details are available in the SuiteCRM Security Policy and the GitHub Security Advisory GHSA-5gcj-mfqq-v8f7.

Workarounds

Restrict network access to the SuiteCRM GraphQL endpoint using firewall rules or reverse-proxy allow-lists until the patch is applied.
Deploy WAF signatures that block SQL injection patterns and time-delay functions in GraphQL request bodies.
Enforce strong authentication, including multi-factor authentication, to reduce the pool of credentials that can be used to exploit the flaw.

bash

# Example reverse-proxy restriction for the SuiteCRM GraphQL endpoint (nginx)
location /api/graphql {
    allow 10.0.0.0/8;      # internal network
    deny all;
    proxy_pass http://suitecrm_backend;
}