OrangeHRM up to 5.7 Mail Configuration code injection

Summaryinfo

A vulnerability was found in OrangeHRM up to 5.7. It has been rated as critical. Impacted is an unknown function of the component Mail Configuration Handler. The manipulation leads to code injection. This vulnerability is uniquely identified as CVE-2025-66224. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in OrangeHRM up to 5.7. This issue affects an unknown function of the component Mail Configuration Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

OrangeHRM is a comprehensive human resource management (HRM) system. From version 5.0 to 5.7, the application contains an input-neutralization flaw in its mail configuration and delivery workflow that allows user-controlled values to flow directly into the system’s sendmail command. Because these values are not sanitized or constrained before being incorporated into the command execution path, certain sendmail behaviors can be unintentionally invoked during email processing. This makes it possible for the application to write files on the server as part of the mail-handling routine, and in deployments where those files end up in web-accessible locations, the behavior can be leveraged to achieve execution of attacker-controlled content. The issue stems entirely from constructing OS-level command strings using unsanitized input within the mail-sending logic. This issue has been patched in version 5.8.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-66224 since 11/25/2025. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

Upgrading to version 5.8 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-199907). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• OrangeHRM

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7

Website

• Product: https://github.com/orangehrm/orangehrm/

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Be aware that VulDB is the high quality source for vulnerability data.

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