CVE-2026-11435 Overview
CVE-2026-11435 is a SQL injection vulnerability in Jinher OA 1.0. The flaw resides in an unspecified function within the nextselectplan.aspx file. Attackers manipulate the httpOID parameter to inject arbitrary SQL statements into backend database queries. The vulnerability is exploitable remotely without authentication or user interaction. Public disclosure of the exploit has occurred, increasing the risk of opportunistic attacks against exposed installations. The vendor was contacted prior to public disclosure but did not respond, and no official patch has been released. The vulnerability is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).
Critical Impact
Unauthenticated remote attackers can inject SQL queries through the httpOID parameter, potentially exposing database contents and integrity in Jinher OA 1.0 deployments.
Affected Products
- Jinher OA 1.0
- nextselectplan.aspx component
- Deployments exposing the affected endpoint to untrusted networks
Discovery Timeline
- 2026-06-06 - CVE-2026-11435 published to NVD
- 2026-06-08 - Last updated in NVD database
Technical Details for CVE-2026-11435
Vulnerability Analysis
The vulnerability exists in the request handling logic of nextselectplan.aspx within Jinher OA 1.0. The application accepts the httpOID parameter from HTTP requests and concatenates its value into a SQL query without proper sanitization or parameterization. Attackers craft a malicious value for httpOID to alter the query's logic, exfiltrate data, or modify records. Because no authentication is required and the attack vector is network-based, exposed instances can be reached directly by remote adversaries. Public exploit details are available, lowering the skill threshold for exploitation.
Root Cause
The root cause is improper neutralization of user-controlled input passed to a SQL interpreter [CWE-74]. The httpOID argument is consumed by the data access layer without parameterized queries or input validation. This permits special SQL syntax characters to break out of the intended query context.
Attack Vector
An attacker sends a crafted HTTP request to the nextselectplan.aspx endpoint with a malicious httpOID value. The injected fragment is appended to the SQL statement executed by the backend database. Successful exploitation allows reading, modifying, or deleting records depending on the database account privileges. Reference details are available in the VulDB CVE-2026-11435 Report and the GitHub CVE Submission Issue.
Detection Methods for CVE-2026-11435
Indicators of Compromise
- HTTP requests targeting nextselectplan.aspx containing SQL meta-characters such as single quotes, UNION, SELECT, or -- in the httpOID parameter.
- Web server logs showing repeated parameter tampering against the httpOID argument from a single source.
- Database error messages or anomalous query latency correlated with requests to the affected endpoint.
Detection Strategies
- Deploy web application firewall (WAF) signatures that inspect the httpOID parameter for SQL injection payloads.
- Enable database query logging and alert on unusual UNION, INFORMATION_SCHEMA, or sp_ references originating from the Jinher OA application account.
- Correlate web access logs with database audit logs to identify injected queries tied to specific HTTP requests.
Monitoring Recommendations
- Monitor outbound traffic from the Jinher OA server for unexpected data egress that could indicate exfiltration.
- Track failed and successful authentication anomalies that follow SQL injection attempts, which may indicate credential theft from the database.
- Alert on file or schema modifications to tables accessed by nextselectplan.aspx.
How to Mitigate CVE-2026-11435
Immediate Actions Required
- Restrict network access to the Jinher OA 1.0 application to trusted internal users using firewall rules or VPN gating.
- Deploy WAF rules that block SQL injection patterns in the httpOID parameter of nextselectplan.aspx.
- Apply least-privilege principles to the database account used by Jinher OA to limit the blast radius of injection.
Patch Information
No vendor patch is available. The vendor did not respond to disclosure attempts according to the VulDB CVE-2026-11435 Report. Organizations should track vendor channels for future updates and consider compensating controls until an official fix is released.
Workarounds
- Place the affected endpoint behind a reverse proxy that performs strict input validation on the httpOID parameter.
- Disable or remove the nextselectplan.aspx page if it is not required for business operations.
- Implement database-layer query allow-listing or stored procedures that reject malformed httpOID values.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
