CVE-2020-21238
CVE-2020-21238 is a critical-severity vulnerability in Chshcms Cscms with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (57th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-307
- Affected product: Chshcms Cscms
- Published:
- Last modified:
Description
An issue in the user login box of CSCMS v4.0 allows attackers to hijack user accounts via brute force attacks.
Frequently asked questions
- What is CVE-2020-21238?
- An issue in the user login box of CSCMS v4.0 allows attackers to hijack user accounts via brute force attacks.
- How severe is CVE-2020-21238?
- CVE-2020-21238 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-21238 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-21238?
- CVE-2020-21238 affects Chshcms Cscms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-21238?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-21238 published?
- CVE-2020-21238 was published on 2021-12-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:chshcms:cscms:4.0:*:*:*:*:*:*:*
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- CVE-2020-22848 — Critical (CVSS 9.8): A remote code execution (RCE) vulnerability in the \Playsong.php component of cscms v4.1 allows attackers to execute…
- CVE-2018-17126 — Critical (CVSS 9.8): CScms 4.1 allows remote code execution, as demonstrated by 1');eval($_POST[cmd]);# in Web Name to…
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