CVE-2026-3616 – This CVE describes a SQL injection vulnerabilit... (How to Fix)

Q: What is the severity of CVE-2026-3616?

CVE-2026-3616 has a CVSS score of 6.3 (MEDIUM). This CVE describes a SQL injection vulnerability in DefaultFuction Jeson Customer Relationship Management System 1.0.0 that allows remote attackers to execute arbitrary SQL commands via the ID parameter in the /modules/customers/edit.php file. All users running the affected version are vulnerable to potential data theft, modification, or system compromise.

📋 TL;DR

This CVE describes a SQL injection vulnerability in DefaultFuction Jeson Customer Relationship Management System 1.0.0 that allows remote attackers to execute arbitrary SQL commands via the ID parameter in the /modules/customers/edit.php file. All users running the affected version are vulnerable to potential data theft, modification, or system compromise.

💻 Affected Systems

Products:

DefaultFuction Jeson Customer Relationship Management System

Versions: 1.0.0

Operating Systems: Any OS running the affected software

Default Config Vulnerable: ⚠️ Yes

Notes: All installations of version 1.0.0 are vulnerable by default. The vulnerability exists in the edit.php file within the customers module.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:

Review the CVE details at NVD
Check vendor security advisories for your specific version
Test if the vulnerability is exploitable in your environment
Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise including data exfiltration, data destruction, privilege escalation to system-level access, and potential remote code execution.

🟠

Likely Case

Unauthorized access to customer data, modification of database records, and potential extraction of sensitive information like passwords or personal data.

🟢

If Mitigated

Limited impact with proper input validation and parameterized queries preventing successful exploitation.

🌐 Internet-Facing: HIGH - The vulnerability is remotely exploitable and the exploit is publicly available.

🏢 Internal Only: MEDIUM - Still exploitable from internal networks but requires network access.

🎯 Exploit Status

Public PoC: ⚠️ Yes

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

The exploit is publicly available and SQL injection vulnerabilities are commonly weaponized. Remote exploitation requires no authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Patched via commit f0e991870e9d33701cca3a1d0fd4eec135af01a6

Vendor Advisory: https://github.com/DefaultFuction/Jeson-Customer-Relationship-Management-System/commit/f0e991870e9d33701cca3a1d0fd4eec135af01a6

Restart Required: No

Instructions:

1. Apply the patch from commit f0e991870e9d33701cca3a1d0fd4eec135af01a6. 2. Update the /modules/customers/edit.php file with the patched version. 3. Verify the fix by testing SQL injection attempts against the ID parameter.

🔧 Temporary Workarounds

Web Application Firewall (WAF) Rules

all

Implement WAF rules to block SQL injection patterns targeting the /modules/customers/edit.php endpoint.

Input Validation Filter

all

Add server-side validation to ensure ID parameter contains only numeric values before processing.

🧯 If You Can't Patch

Implement strict input validation to only accept numeric values for the ID parameter
Deploy a web application firewall with SQL injection detection rules

🔍 How to Verify

Check if Vulnerable:

Test the /modules/customers/edit.php endpoint with SQL injection payloads in the ID parameter (e.g., ' OR '1'='1).

Check Version:

Check the software version in configuration files or about pages; affected version is 1.0.0.

Verify Fix Applied:

Verify the patch commit f0e991870e9d33701cca3a1d0fd4eec135af01a6 is applied to the edit.php file and test SQL injection attempts return errors or are blocked.

📡 Detection & Monitoring

Log Indicators:

Unusual SQL error messages in application logs
Multiple requests to /modules/customers/edit.php with suspicious ID parameters
Database query errors containing SQL syntax

Network Indicators:

HTTP POST/GET requests to /modules/customers/edit.php with SQL keywords in parameters
Unusual database connection patterns from web server

SIEM Query:

source="web_logs" AND uri="/modules/customers/edit.php" AND (param="ID" AND value MATCHES "(?i)(union|select|insert|update|delete|drop|or|and|--|#|;)")

📊 Metadata

CVE ID: CVE-2026-3616

CVSS v3 Score: 6.3 (MEDIUM)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CWE: CWE-74

Published: March 6, 2026

Last Updated: March 9, 2026

🔗 References

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