CVE-2020-21238
Published: 27 December 2021
Summary
CVE-2020-21238 is a critical-severity Improper Restriction of Excessive Authentication Attempts (CWE-307) vulnerability in Chshcms Cscms. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 43.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2020-14012
Vulnerability details
An issue in the user login box of CSCMS v4.0 allows attackers to hijack user accounts via brute force attacks.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
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.
This control directly enforces limits on consecutive invalid logon attempts and automatic response (e.g., lockout) to prevent brute-force exploitation of authentication mechanisms.
Specific conditions can include excessive failed attempts, triggering stronger authentication that restricts brute-force exploitation.