What is the CVSS score of CVE-2021-42123?

CVE-2021-42123 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.0%.

Topease CVE-2021-42123

HIGH

Unrestricted Upload of File with Dangerous Type (CWE-434)

2021-11-30 vulnerability@ncsc.ch

File Upload Topease

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 30, 2021 - 12:15 nvd

HIGH 8.8

DescriptionNVD

Unrestricted File Upload in Web Applications operating on Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27 in the File Upload Functions allows an authenticated remote attacker with Upload privileges to upload files with any file type, enabling client-side attacks.

AnalysisAI

Unrestricted File Upload in Web Applications operating on Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27 in the File Upload Functions allows an authenticated remote attacker with. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. Unrestricted File Upload in Web Applications operating on Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27 in the File Upload Functions allows an authenticated remote attacker with Upload privileges to upload files with any file type, enabling client-side attacks. Affected products include: Businessdnasolutions Topease.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.