CVE-2020-28206
CVE-2020-28206 is a medium-severity vulnerability in Bitrix24 Bitrix Framework with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-307.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.0
- EPSS exploit prediction: 1% (62nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-307
- Affected product: Bitrix24 Bitrix Framework
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2020-28206?
- 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.
- How severe is CVE-2020-28206?
- CVE-2020-28206 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2020-28206 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-28206?
- CVE-2020-28206 affects Bitrix24 Bitrix Framework. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-28206?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-28206 published?
- CVE-2020-28206 was published on 2020-12-02 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:bitrix24:bitrix_framework:20.0:*:*:*:*:*:*:*
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