What is the CVSS score of CVE-2019-18952?

CVE-2019-18952 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 45.4%.

Is there a public PoC exploit available for CVE-2019-18952?

Yes, a public proof-of-concept exploit is available for CVE-2019-18952. Prioritise patching immediately. EPSS: 45.4%.

Xfilesharing CVE-2019-18952

CRITICAL

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

2019-11-13 cve@mitre.org

File Upload RCE Xfilesharing

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 13, 2019 - 23:15 nvd

CRITICAL 9.8

DescriptionNVD

SibSoft Xfilesharing through 2.5.1 allows cgi-bin/up.cgi arbitrary file upload. This can be combined with CVE-2019-18951 to achieve remote code execution via a .html file, containing short codes, that is served over HTTP.

AnalysisAI

SibSoft Xfilesharing through 2.5.1 allows cgi-bin/up.cgi arbitrary file upload. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, 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. SibSoft Xfilesharing through 2.5.1 allows cgi-bin/up.cgi arbitrary file upload. This can be combined with CVE-2019-18951 to achieve remote code execution via a .html file, containing short codes, that is served over HTTP. Affected products include: Sibsoft Xfilesharing. Version information: through 2.5.1.

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.