CVE-2025-8703 Overview
CVE-2025-8703 is a SQL injection vulnerability in Wanzhou WOES Intelligent Optimization Energy Saving System version 1.0. The flaw resides in the /WEAS_HomePage/GetAreaTrendChartData endpoint within the Environmental Real-Time Data Module. Attackers manipulate the energyId parameter to inject arbitrary SQL statements into backend database queries. The vulnerability is remotely exploitable and requires low-level authentication privileges. Public disclosure of the exploit technique has occurred, increasing the likelihood of opportunistic attacks against exposed instances.
Critical Impact
Authenticated remote attackers can inject SQL commands through the energyId parameter to read, modify, or extract data from the backend database supporting the energy management platform.
Affected Products
- Wanzhou WOES Intelligent Optimization Energy Saving System 1.0
- Environmental Real-Time Data Module component
- Deployments exposing /WEAS_HomePage/GetAreaTrendChartData to untrusted networks
Discovery Timeline
- 2025-08-08 - CVE-2025-8703 published to NVD
- 2026-04-29 - Last updated in NVD database
Technical Details for CVE-2025-8703
Vulnerability Analysis
The vulnerability is classified under [CWE-74] Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). The Environmental Real-Time Data Module processes the energyId parameter without sanitization before incorporating it into a SQL query. An attacker submits crafted input that breaks out of the intended query context and appends arbitrary SQL clauses. Successful exploitation allows enumeration of database schemas, extraction of sensitive records, or modification of stored data depending on database account privileges.
The attack requires network access to the application and low-privilege authentication. No user interaction is needed to trigger the flaw. Public disclosure of exploit details lowers the technical barrier for adversaries targeting exposed deployments.
Root Cause
The root cause is direct concatenation of untrusted input into a SQL statement within the GetAreaTrendChartData handler. The application does not use parameterized queries or prepared statements for the energyId argument. Server-side input validation is absent or insufficient to neutralize SQL metacharacters such as single quotes, semicolons, and UNION constructs.
Attack Vector
An authenticated attacker sends an HTTP request to /WEAS_HomePage/GetAreaTrendChartData with a malicious energyId value. The injected payload alters the query logic executed against the backend database. Typical payloads include boolean-based blind injection, UNION-based extraction, and time-based blind techniques. Exploitation requires only standard HTTP client tooling and credentials at any privilege tier within the application.
Detection Methods for CVE-2025-8703
Indicators of Compromise
- HTTP requests to /WEAS_HomePage/GetAreaTrendChartData containing SQL metacharacters such as ', --, ;, UNION, SELECT, or SLEEP( in the energyId parameter
- Unexpected database errors logged by the WOES application correlated with requests to the affected endpoint
- Anomalous response sizes or response times for GetAreaTrendChartData requests indicating blind injection probing
Detection Strategies
- Deploy web application firewall rules that inspect the energyId parameter for SQL injection patterns
- Enable database query logging and alert on syntactically unusual queries originating from the WOES application service account
- Correlate authentication events with subsequent high-volume requests to the affected endpoint from the same session
Monitoring Recommendations
- Monitor outbound database traffic from the WOES application server for unusual SELECT volumes or schema metadata queries against INFORMATION_SCHEMA
- Track failed login attempts followed by successful authentication and immediate access to /WEAS_HomePage/GetAreaTrendChartData
- Alert on application-layer 500 errors generated by the affected endpoint, which often indicate injection probing
How to Mitigate CVE-2025-8703
Immediate Actions Required
- Restrict network access to the WOES management interface to trusted administrative networks only
- Audit application accounts and disable unused or default credentials to limit the pool of attackers meeting the authentication requirement
- Review database logs for evidence of prior exploitation against the GetAreaTrendChartData endpoint
Patch Information
No vendor patch has been published in the references available at the time of disclosure. Refer to the GitHub Issue Discussion and VulDB entry #319132 for tracking updates. Contact Wanzhou directly to confirm remediation availability for version 1.0.
Workarounds
- Place the WOES application behind a reverse proxy or WAF that blocks SQL metacharacters in the energyId query parameter
- Apply database-level least privilege so that the WOES service account cannot read sensitive tables or execute DDL statements
- Disable or firewall the /WEAS_HomePage/GetAreaTrendChartData endpoint until a vendor fix is available if it is not required for operations
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
