Cyber Resilience

CVE-2025-56385

Critical

Published: 12 November 2025

Published
12 November 2025
Modified
31 December 2025
KEV Added
—
Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0012 31.1th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-56385 is a critical-severity SQL Injection (CWE-89) vulnerability in Wellsky Harmony. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 31.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

A SQL injection vulnerability, tracked as CVE-2025-56385, affects the login functionality in WellSky Harmony version 4.1.0.2.83. The issue resides in the 'xmHarmony.asp' endpoint, where user-supplied input to the 'TXTUSERID' parameter is not properly sanitized before being incorporated into a SQL query. This flaw, classified under CWE-89, was published on 2025-11-12 and carries a CVSS v3.1 base score of 9.8.

Remote attackers require no privileges or user interaction to exploit this vulnerability over the network with low complexity. Successful exploitation can enable authentication bypass, data leakage from the backend database, or full compromise of database contents, potentially leading to high impacts on confidentiality, integrity, and availability.

Advisories and additional details are available from vendor sites at http://harmony.com and http://wellsky.com, as well as a security blog analysis at https://machevalia.blog/blog/cve-2025-56385-wellsky-harmony-sql-injection.

EU & UK References

Vulnerability details

A SQL injection vulnerability exists in the login functionality of WellSky Harmony version 4.1.0.2.83 within the 'xmHarmony.asp' endpoint. User-supplied input to the 'TXTUSERID' parameter is not properly sanitized before being incorporated into a SQL query. Successful authentication may lead to…

more

authentication bypass, data leakage, or full system compromise of backend database contents.

CWE(s)
CWE-89

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1213.006 Databases Collection
Adversaries may leverage databases to mine valuable information.
attack.mitre.org →
Why these techniques?

SQL injection vulnerability in public-facing web application login endpoint (xmHarmony.asp) enables remote exploitation of public-facing application (T1190) for authentication bypass and facilitates data collection from backend databases via arbitrary SQL queries (T1213.006).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2019-25537Shared CWE-89
CVE-2019-25366Shared CWE-89
CVE-2019-25496Shared CWE-89
CVE-2026-1475Shared CWE-89
CVE-2026-26990Shared CWE-89
CVE-2026-44047Shared CWE-89
CVE-2025-12865Shared CWE-89
CVE-2024-11135Shared CWE-89
CVE-2019-25491Shared CWE-89
CVE-2024-13369Shared CWE-89

Affected Assets

wellsky
harmony
4.1.0.2.83

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly requires validation and sanitization of user-supplied input to the TXTUSERID parameter to prevent SQL injection in the xmHarmony.asp endpoint.

SI-2 Flaw Remediation good match
prevent

Mandates timely identification, reporting, and correction of the SQL injection flaw in WellSky Harmony version 4.1.0.2.83.

SI-5 Security Alerts, Advisories, and Directives good match
prevent

Ensures the organization reviews and applies security advisories and vendor updates for CVE-2025-56385 to remediate the vulnerability.

References