CVE-2026-109183 in jshERP
Summary
by MITRE • 10/12/2026
jshERP through 3.6 contains an authorization bypass vulnerability that allows authenticated users to create pre-approved bills by setting status in POST /depotHead/addDepotHeadAndDetail requests. Attackers can supply a status of 1 to skip audit permission checks and multi-level approval workflows, creating audited bills that affect stock and report queries.
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Analysis
by VulDB Data Team • 10/12/2026
The vulnerability identified within jshERP versions up to 3.6 represents a critical authorization bypass flaw rooted in improper access control mechanisms on the server side. This specific weakness allows authenticated users to manipulate application logic by directly modifying request parameters, specifically targeting the POST /depotHead/addDepotHeadAndDetail endpoint. The core technical failure lies in the backend validation process which fails to enforce mandatory business rules regarding document status transitions. Instead of relying solely on user-supplied input for critical state changes such as audit approval, the system trusts the client-provided value without sufficient server-side verification against the current user's permissions or the predefined workflow states. This design oversight enables an attacker who has valid credentials to inject a specific parameter value that circumvents the intended security controls.
From a technical perspective, the exploitation involves sending a POST request with a status field set to 1 within the depot head and detail payload. In typical enterprise resource planning systems, this status code usually signifies an approved or audited state. By manually setting this flag during the creation of new inventory bills, the attacker effectively skips the multi-level approval workflows that are designed to prevent unauthorized stock movements. The application processes these requests as if they have passed through all necessary administrative checks, thereby granting them immediate validity without requiring actual authorization from a superior or an audit department. This bypass is particularly dangerous because it exploits the trust placed in client-side inputs for critical business logic enforcement, a common pattern that leads to insecure direct object references and broken access control issues.
The operational impact of this vulnerability extends beyond simple data integrity concerns into significant financial and logistical risks for organizations relying on jshERP for inventory management. By creating pre-approved bills without proper oversight, an attacker can artificially inflate or deflate stock levels in the system. This manipulation directly affects physical inventory records, leading to discrepancies between actual warehouse contents and digital representations. Furthermore, since these fabricated bills are treated as legitimate audited transactions, they skew financial reports that depend on accurate stock data for cost accounting and asset valuation. The ability to bypass audit permissions means that fraudulent activities can be concealed within normal operational traffic, making detection difficult without rigorous log analysis or external auditing mechanisms.
This vulnerability aligns with CWE-269, which classifies Improper Privilege Management, as it allows a lower-privileged user to perform actions reserved for higher-level roles such as auditors or managers. It also maps closely to MITRE ATT&CK technique T1078, Valid Accounts, where attackers leverage legitimate credentials to bypass security controls and achieve their objectives within the system environment. The lack of server-side validation on critical state transitions exemplifies a failure in implementing robust business logic checks that are essential for maintaining data integrity in financial applications.
To mitigate this risk, developers must implement strict server-side authorization checks for all status modifications related to audit workflows. It is imperative that the application does not trust client-supplied values for sensitive fields like document status; instead, these should be determined exclusively by backend logic based on verified user permissions and workflow states. Implementing role-based access control at the service layer ensures that only users with explicit approval rights can transition documents into an audited state. Additionally, introducing immutable audit logs that record who initiated each step of the approval process can help detect anomalies early. Regular security code reviews focusing on business logic flaws and penetration testing specifically targeting authorization bypasses are recommended to identify similar weaknesses in other modules before they can be exploited in production environments.