CVE-2025-59524
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-24

Last updated on: 2025-09-29

Assigner: GitHub, Inc.

Description
Horilla is a free and open source Human Resource Management System (HRMS). Prior to version 1.4.0, the file upload flow performs validation only in the browser and does not enforce server-side checks. An attacker can bypass the client-side validation (for example, with an intercepting proxy or by submitting a crafted request) to store an executable HTML document on the server. When an administrator or other privileged user views the uploaded file, the embedded script runs in their context and sends session cookies (or other credentials) to an attacker-controlled endpoint. The attacker then reuses those credentials to impersonate the admin. This issue has been patched in version 1.4.0.
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Meta Information
Published
2025-09-24
Last Modified
2025-09-29
Generated
2026-05-07
AI Q&A
2025-09-24
EPSS Evaluated
2026-05-05
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
horilla horilla to 1.4.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in Horilla HRMS versions prior to 1.4.0, where file upload validation is only done on the client side and not enforced on the server. An attacker can bypass client-side checks to upload a malicious executable HTML file. When an administrator or privileged user views this file, the embedded script executes in their context and sends their session cookies or credentials to the attacker, allowing the attacker to impersonate the admin.


How can this vulnerability impact me? :

The vulnerability can lead to an attacker stealing administrator credentials by executing malicious scripts in the admin's browser context. This allows the attacker to impersonate the admin, potentially gaining unauthorized access to sensitive HR data and administrative functions within the Horilla system.


What immediate steps should I take to mitigate this vulnerability?

Upgrade Horilla to version 1.4.0 or later, as this version includes a patch that enforces server-side validation of uploaded files to prevent the vulnerability.


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