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CVE-2020-18114

An arbitrary file upload vulnerability in the /uploads/dede component of DedeCMS V5.7SP2 allows...

9.8 Critical

An arbitrary file upload vulnerability in the /uploads/dede component of DedeCMS V5.7SP2 allows attackers to upload a webshell in HTM format.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.94%Up 1.5 points since Aug 28, 2021
90%50%10%1%

What each source reports

NVD Score used 9.8

An arbitrary file upload vulnerability in the /uploads/dede component of DedeCMS V5.7SP2 allows attackers to upload a webshell in HTM format.

Record
CVE-2020-18114
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-434
Updated
2026-11-02
CVE List No score

An arbitrary file upload vulnerability in the /uploads/dede component of DedeCMS V5.7SP2 allows attackers to upload a webshell in HTM format.

Record
CVE-2020-18114
Updated
2026-11-02
EUVDEUVD-2020-10043 No score

An arbitrary file upload vulnerability in the /uploads/dede component of DedeCMS V5.7SP2 allows attackers to upload a webshell in HTM format.

Record
EUVD-2020-10043
Updated
2026-11-03
GitHub AdvisoriesGHSA-qgxp-9f76-rc2q No score

An arbitrary file upload vulnerability in the /uploads/dede component of DedeCMS V5.7SP2 allows...

An arbitrary file upload vulnerability in the /uploads/dede component of DedeCMS V5.7SP2 allows attackers to upload a webshell in HTM format.

Record
GHSA-qgxp-9f76-rc2q
Weakness
CWE-434
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-18114 is a critical vulnerability (CVSS 9.8) in Dedecms, published August 27, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.94%, the 80th percentile. No source names a fixed version.

References

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