What is the CVSS score of CVE-2023-4409?

CVE-2023-4409 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: 0.8%.

Is there a public PoC exploit available for CVE-2023-4409?

Yes, a public proof-of-concept exploit is available for CVE-2023-4409. Prioritise patching immediately. EPSS: 0.8%.

Nbs Happysoftwechat CVE-2023-4409

HIGH

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

2023-08-18 cna@vuldb.com

File Upload Nbs Happysoftwechat

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

Aug 18, 2023 - 13:15 nvd

HIGH 8.8

DescriptionNVD

A vulnerability, which was classified as critical, has been found in NBS&HappySoftWeChat 1.1.6. Affected by this issue is some unknown functionality. The manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-237512.

AnalysisAI

A vulnerability, which was classified as critical, has been found in NBS&HappySoftWeChat 1.1.6. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and 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. A vulnerability, which was classified as critical, has been found in NBS&HappySoftWeChat 1.1.6. Affected by this issue is some unknown functionality. The manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-237512. Affected products include: Happysoft Nbs\&Happysoftwechat.

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.