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medium advisory

CVE-2026-46828 - Oracle Payroll Vulnerability Allows Unauthorized Data Access and Modification

CVE-2026-46828 is an easily exploitable vulnerability in Oracle Payroll versions 12.2.3-12.2.15, allowing a low-privileged attacker with network access via HTTP to perform unauthorized creation, deletion, or modification of critical payroll data, as well as gain unauthorized access to sensitive information.

CVE-2026-46828 affects the Oracle Payroll product within the Oracle E-Business Suite, specifically the Internal Operations component. This vulnerability impacts supported versions from 12.2.3 through 12.2.15. A low-privileged attacker who can access the system via HTTP can exploit this weakness. Successful exploitation allows the attacker to create, delete, or modify critical data within Oracle Payroll without authorization. Additionally, they can gain unauthorized access to sensitive data, potentially compromising the entire payroll system. This vulnerability poses a significant risk to organizations relying on Oracle E-Business Suite for payroll management. Defenders should prioritize patching and monitoring for suspicious activity related to Oracle Payroll’s HTTP endpoints.

Attack Chain

  1. Attacker gains low-privileged network access to the Oracle E-Business Suite server.
  2. Attacker sends a malicious HTTP request targeting the vulnerable Internal Operations component of Oracle Payroll.
  3. The request exploits a flaw in input validation or authorization checks within the Internal Operations component.
  4. Successful exploitation bypasses intended access controls.
  5. Attacker gains unauthorized access to Oracle Payroll data.
  6. Attacker modifies payroll records, such as salary details, bank account information, or tax withholdings.
  7. Attacker creates new unauthorized payroll entries or deletes existing ones.
  8. The changes are propagated to the payroll system, leading to financial discrepancies or data breaches.

Impact

Successful exploitation of CVE-2026-46828 can have significant consequences, including unauthorized modification of employee salary data, fraudulent payments, and exposure of sensitive employee information. The vulnerability affects Oracle Payroll versions 12.2.3 through 12.2.15. The impact includes potential financial losses, legal and regulatory penalties, and reputational damage to the organization. This vulnerability allows full access to all Oracle Payroll accessible data.

Recommendation

  • Apply the patch provided by Oracle to address CVE-2026-46828 on all Oracle E-Business Suite instances running affected versions (12.2.3-12.2.15).
  • Monitor HTTP traffic to Oracle Payroll for suspicious activity, such as unexpected requests to Internal Operations endpoints, using the detection rules provided.
  • Implement strict access controls and regularly review user privileges within Oracle E-Business Suite.
  • Enable logging for all HTTP requests to Oracle Payroll and retain logs for forensic analysis.

Detection coverage 2

Detect CVE-2026-46828 Exploitation Attempt - Suspicious HTTP Request to Oracle Payroll Internal Operations

high

Detects CVE-2026-46828 exploitation attempt — suspicious HTTP requests targeting Oracle Payroll Internal Operations component, indicative of unauthorized access attempts.

sigma tactics: initial_access techniques: T1190 sources: webserver

Detect CVE-2026-46828 Exploitation - Unauthorized Data Modification in Oracle Payroll

medium

Detects CVE-2026-46828 exploitation — monitors for unusual data modification activities within Oracle Payroll after potential unauthorized access.

sigma tactics: persistence techniques: T1078 sources: webserver

Detection queries are available on the platform. Get full rules →