CVE-2020-28206: BITRIX24 Bitrix Framework

Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days.

An issue was discovered in Bitrix24 Bitrix Framework (1c site management) 20.0. An "User enumeration and Improper Restriction of Excessive Authentication Attempts" vulnerability exists in the admin login form, allowing a remote user to enumerate users in the administrator group. This also allows brute-force attacks on the passwords of users not in the administrator group.

Affected products

• BITRIX24 Bitrix Framework: version 20.0 only

Published 2020-12-02. Last modified 2026-06-17.