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 authentication bypass, data leakage, or full system compromise of backend database contents.
| Балл | 9.8 — критическая |
| Вектор | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |