CVE-2025-41028
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-20

Last updated on: 2025-10-21

Assigner: Spanish National Cybersecurity Institute, S.A. (INCIBE)

Description
A SQL Injection vulnerability has been found in Epsilon RH by Grupo Castilla. This vulnerability allows an attacker to retrieve, create, update and delete database via sending a POST request using the parameter ‘sEstadoUsr’ in ‘/epsilonnetws/WSAvisos.asmx’.
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Meta Information
Published
2025-10-20
Last Modified
2025-10-21
Generated
2026-06-16
AI Q&A
2025-10-20
EPSS Evaluated
2026-06-15
NVD
CVE-2025-41028
EUVD
EUVD-2025-35043
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
grupo_castilla epsilon_rh *
grupo_castilla epsilon_rh 3.03.36.0121
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
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Impact Analysis

This vulnerability can have severe impacts including unauthorized access to sensitive data, data manipulation, and deletion. Because it affects confidentiality, integrity, and availability of the database, an attacker could compromise the entire system's data, potentially leading to data breaches, loss of critical information, and disruption of services. [1]

Executive Summary

CVE-2025-41028 is a critical SQL Injection vulnerability in Epsilon RH, a human resources system by Grupo Castilla. It allows an unauthenticated attacker to send a specially crafted POST request with the parameter 'sEstadoUsr' to the endpoint '/epsilonnetws/WSAvisos.asmx', enabling unauthorized database operations such as retrieving, creating, modifying, and deleting data. [1]

Detection Guidance

This vulnerability can be detected by monitoring for suspicious POST requests to the endpoint '/epsilonnetws/WSAvisos.asmx' containing the parameter 'sEstadoUsr'. A possible detection method is to capture and analyze HTTP traffic for such requests. For example, using curl to test the endpoint with crafted payloads or using network monitoring tools like tcpdump or Wireshark to filter POST requests to that endpoint. A sample curl command to test might be: curl -X POST -d "sEstadoUsr=payload" https://<target>/epsilonnetws/WSAvisos.asmx. Additionally, web application firewalls (WAFs) can be configured to alert on SQL injection patterns in this parameter. [1]

Mitigation Strategies

The immediate mitigation step is to upgrade Epsilon RH to version 3.03.36.0121 or later, where the vulnerability has been fixed by Grupo Castilla. Until the update can be applied, restrict access to the vulnerable endpoint, implement web application firewall rules to block or monitor suspicious POST requests with the 'sEstadoUsr' parameter, and monitor logs for exploitation attempts. [1]

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