CVE-2026-4289: Tiandy Easy7 SQL Injection Vulnerability

CVE-2026-4289 Overview

A SQL injection vulnerability has been identified in Tiandy Easy7 Integrated Management Platform up to version 7.17.0. This vulnerability affects an unknown function within the file /rest/preSetTemplate/getRecByTemplateId. Manipulation of the ID argument allows for SQL injection attacks. The vulnerability can be exploited remotely over the network without requiring authentication, potentially allowing attackers to extract, modify, or delete database contents.

Critical Impact

Unauthenticated remote attackers can exploit this SQL injection vulnerability to manipulate database queries, potentially leading to data exfiltration, unauthorized data modification, or complete database compromise. The exploit has been publicly disclosed and may be actively used.

Affected Products

• Tiandy Easy7 Integrated Management Platform up to version 7.17.0
• Systems running the vulnerable /rest/preSetTemplate/getRecByTemplateId endpoint

Discovery Timeline

• 2026-03-17 - CVE-2026-4289 published to NVD
• 2026-03-17 - Last updated in NVD database

Technical Details for CVE-2026-4289

Vulnerability Analysis

This vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection vulnerabilities including SQL injection. The affected endpoint /rest/preSetTemplate/getRecByTemplateId fails to properly sanitize the ID parameter before incorporating it into SQL queries.

The vulnerability allows attackers to inject malicious SQL statements through the ID argument, which the application processes without adequate input validation or parameterized query mechanisms. Because the attack can be initiated remotely without authentication, the exposure is significant for any internet-facing deployment of the Tiandy Easy7 platform.

The vendor was contacted early about this disclosure but did not respond, leaving users without an official patch or acknowledgment of the vulnerability.

Root Cause

The root cause of this vulnerability is improper input validation and the lack of parameterized queries or prepared statements in the affected REST API endpoint. When user-supplied input from the ID parameter is directly concatenated into SQL queries without sanitization, it creates an avenue for SQL injection attacks. The application fails to implement proper output encoding for SQL contexts, allowing special characters and SQL syntax to be interpreted as part of the query structure rather than data.

Attack Vector

The attack is network-based, requiring no authentication or user interaction. An attacker can craft malicious HTTP requests to the vulnerable endpoint /rest/preSetTemplate/getRecByTemplateId with specially crafted ID parameter values containing SQL injection payloads. These payloads can be designed to:

• Extract sensitive data from the database using UNION-based or blind SQL injection techniques
• Modify or delete existing database records
• Potentially execute administrative database operations depending on database permissions
• In some configurations, read or write files on the server or execute system commands

The vulnerability exploitation requires network access to the affected endpoint. Additional technical details regarding the exploitation methodology can be found in the VulDB entry and the technical disclosure document.

Detection Methods for CVE-2026-4289

Indicators of Compromise

• Unusual or malformed requests to /rest/preSetTemplate/getRecByTemplateId containing SQL syntax characters such as single quotes ('), double dashes (--), semicolons (;), or UNION keywords
• Database error messages appearing in HTTP responses from the affected endpoint
• Unexpected database query patterns or elevated database resource usage
• Evidence of data exfiltration or unauthorized database access in audit logs

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the /rest/preSetTemplate/getRecByTemplateId endpoint
• Implement intrusion detection system (IDS) signatures to identify SQL injection attempts in HTTP traffic
• Monitor application and database logs for suspicious query patterns or authentication anomalies
• Use SentinelOne's behavioral AI to detect post-exploitation activities that may follow successful SQL injection attacks

Monitoring Recommendations

• Enable detailed logging for the Tiandy Easy7 platform, particularly for REST API endpoints
• Configure alerts for unusual database query execution times or error rates
• Monitor network traffic for outbound connections that may indicate data exfiltration following a successful attack
• Implement database activity monitoring to detect unauthorized data access patterns

How to Mitigate CVE-2026-4289

Immediate Actions Required

• Restrict network access to the Tiandy Easy7 platform, particularly the vulnerable /rest/preSetTemplate/getRecByTemplateId endpoint, using firewall rules or network segmentation
• Implement a Web Application Firewall (WAF) with SQL injection protection rules in front of the affected application
• Review database permissions to ensure the application uses a least-privilege database account
• Enable comprehensive logging and monitoring to detect exploitation attempts

Patch Information

As of the last update on 2026-03-17, no official patch is available from the vendor. The vendor was contacted regarding this disclosure but did not respond. Organizations should implement compensating controls until an official fix is released. Monitor the VulDB entry and vendor communications for patch announcements.

Workarounds

• Block external access to the /rest/preSetTemplate/getRecByTemplateId endpoint using reverse proxy or firewall rules if the functionality is not required externally
• Deploy a WAF configured with SQL injection protection rules targeting the vulnerable parameter
• Implement IP whitelisting to restrict access to the Tiandy Easy7 platform to trusted networks only
• Consider isolating the system from critical network segments until a patch becomes available

# Example WAF rule to block SQL injection attempts (ModSecurity)
SecRule ARGS:ID "@detectSQLi" \
    "id:100001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection attempt detected in ID parameter',\
    log,\
    auditlog"