CVE-2020-18114
CVE-2020-18114 is a critical-severity vulnerability in Dedecms 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)
- CVSS v2: 7.5
- EPSS exploit prediction: 2% (78th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: Dedecms
- Published:
- Last modified:
Description
An arbitrary file upload vulnerability in the /uploads/dede component of DedeCMS V5.7SP2 allows attackers to upload a webshell in HTM format.
Frequently asked questions
- What is CVE-2020-18114?
- An arbitrary file upload vulnerability in the /uploads/dede component of DedeCMS V5.7SP2 allows attackers to upload a webshell in HTM format.
- How severe is CVE-2020-18114?
- CVE-2020-18114 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-2020-18114 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-18114?
- CVE-2020-18114 affects Dedecms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-18114?
- 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-2020-18114 published?
- CVE-2020-18114 was published on 2021-08-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:dedecms:dedecms:5.7:sp2:*:*:*:*:*:*
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