CVE-2025-59832
Published: 25 September 2025
Summary
CVE-2025-59832 is a critical-severity Cross-site Scripting (CWE-79) vulnerability in Horilla Horilla. Its CVSS base score is 9.9 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Steal Web Session Cookie (T1539); ranked at the 33.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-31100
Vulnerability details
Horilla is a free and open source Human Resource Management System (HRMS). Prior to version 1.4.0, there is a stored XSS vulnerability in the ticket comment editor. A low-privilege authenticated user could run arbitrary JavaScript in an admin’s browser, exfiltrate…
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the admin’s cookies/CSRF token, and hijack their session. This issue has been patched in version 1.4.0.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stored XSS allows execution of arbitrary JavaScript in admin browser to steal session cookies and CSRF tokens, enabling web session cookie theft for session hijacking.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.