CVE-2026-102456 Overview
CVE-2026-102456 is a SQL Injection vulnerability [CWE-89] in Digiwin EasyFlow .NET. Authenticated remote attackers can inject arbitrary SQL commands through the application to read database contents. The flaw allows adversaries with valid credentials to query backend data outside the intended application logic. Successful exploitation exposes sensitive business records, user information, and any other data reachable by the application's database account.
Critical Impact
An authenticated attacker can execute arbitrary SQL statements against the backing database and exfiltrate its contents over the network.
Affected Products
- Digiwin EasyFlow .NET
Discovery Timeline
- 2026-09-30 - CVE-2026-102456 published to NVD
- 2026-09-30 - Last updated in NVD database
Technical Details for CVE-2026-102456
Vulnerability Analysis
EasyFlow .NET fails to properly validate or parameterize user-controlled input before incorporating it into SQL queries. An attacker with a valid application account submits crafted parameter values that alter query structure. The database then executes the injected clauses under the privileges of the application's service account.
The confidentiality impact is high because injected SELECT statements can return arbitrary rows from any table accessible to the connection. Integrity and availability are not directly affected according to the published vector, indicating read-oriented exploitation paths. The vulnerability is remotely reachable over the network and requires low attack complexity.
Root Cause
The root cause is improper neutralization of special elements used in a SQL command [CWE-89]. EasyFlow .NET concatenates untrusted input into query strings rather than using parameterized statements or prepared queries. This design pattern allows attacker-supplied SQL syntax to be parsed and executed by the database engine.
Attack Vector
Exploitation requires an authenticated session against the EasyFlow .NET application. The attacker submits crafted values, typically through form fields or API parameters, that contain SQL metacharacters such as single quotes, comment markers, or UNION operators. The application forwards the malicious input into a dynamic query, and the database returns data controlled by the attacker's payload. Refer to the TWCERT Security Advisory for vendor-coordinated technical details.
Detection Methods for CVE-2026-102456
Indicators of Compromise
- Application or database logs containing SQL metacharacters such as ', --, /*, UNION SELECT, or OR 1=1 within request parameters.
- Unexpected SELECT statements referencing sensitive tables issued by the EasyFlow .NET service account.
- Anomalously large result sets or long-running queries originating from authenticated user sessions.
Detection Strategies
- Enable database query auditing and alert on syntactically malformed statements or statements containing tautologies.
- Deploy a web application firewall with SQL injection signatures in front of EasyFlow .NET.
- Correlate authentication events with subsequent unusual query patterns from the same user identity.
Monitoring Recommendations
- Baseline normal query volumes per authenticated user and alert on statistical deviations.
- Monitor outbound network egress from the EasyFlow .NET server for signs of data exfiltration.
- Review privileged database account activity daily until the patch is deployed.
How to Mitigate CVE-2026-102456
Immediate Actions Required
- Apply the vendor-provided update referenced in the TWCERT Security Alert as soon as it is available in your environment.
- Restrict network access to EasyFlow .NET so that only trusted internal users can authenticate to the application.
- Rotate credentials for the database service account and audit its privileges.
Patch Information
Digiwin has coordinated disclosure with TWCERT. Consult the TWCERT Security Advisory for the fixed version and vendor upgrade instructions. Apply the patch to all EasyFlow .NET instances, including staging and development environments.
Workarounds
- Place a web application firewall in front of EasyFlow .NET with rules that block common SQL injection patterns.
- Reduce the database account's permissions to the minimum required, removing rights to sensitive tables where possible.
- Enforce strong authentication and revoke inactive application accounts to shrink the pool of usable attacker identities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
