CVE-2020-21237
CVE-2020-21237 is a critical-severity vulnerability in 8cms Ljcms 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% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-307
- Affected product: 8cms Ljcms
- Published:
- Last modified:
Description
An issue in the user login box of LJCMS v1.11 allows attackers to hijack user accounts via brute force attacks.
Frequently asked questions
- What is CVE-2020-21237?
- An issue in the user login box of LJCMS v1.11 allows attackers to hijack user accounts via brute force attacks.
- How severe is CVE-2020-21237?
- CVE-2020-21237 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-2020-21237 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-21237?
- CVE-2020-21237 affects 8cms Ljcms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-21237?
- 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-2020-21237 published?
- CVE-2020-21237 was published on 2021-12-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:8cms:ljcms:1.11:*:*:*:*:*:*:*
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