CVE-2020-20735
CVE-2020-20735 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-434.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (60th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: 8cms Ljcms
- Published:
- Last modified:
Description
File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary code via the ljcms/index.php parameter.
Frequently asked questions
- What is CVE-2020-20735?
- File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary code via the ljcms/index.php parameter.
- How severe is CVE-2020-20735?
- CVE-2020-20735 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-2020-20735 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-20735?
- CVE-2020-20735 affects 8cms Ljcms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-20735?
- 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-2020-20735 published?
- CVE-2020-20735 was published on 2023-06-20 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:8cms:ljcms:4.3.r60321:*:*:*:*:*:*:*
More vulnerabilities in 8cms Ljcms
- CVE-2020-21237 — Critical (CVSS 9.8): An issue in the user login box of LJCMS v1.11 allows attackers to hijack user accounts via brute force attacks.
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