What is the CVSS score of CVE-2020-13128?

CVE-2020-13128 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 1.6%.

Is there a public PoC exploit available for CVE-2020-13128?

Yes, a public proof-of-concept exploit is available for CVE-2020-13128. Prioritise patching immediately. EPSS: 1.6%.

Java CVE-2020-13128

HIGH

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

2020-05-18 cve@mitre.org

File Upload Java Denial Of Service Gwtupload

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

May 18, 2020 - 00:15 nvd

HIGH 7.5

DescriptionNVD

An issue was discovered in Manolo GWTUpload 1.0.3. server/UploadServlet.java (the servlet for handling file upload) accepts a delay parameter that causes a thread to sleep. It can be abused to cause all of a server's threads to sleep, leading to denial of service.

AnalysisAI

An issue was discovered in Manolo GWTUpload 1.0.3. Rated high severity (CVSS 7.5), 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. An issue was discovered in Manolo GWTUpload 1.0.3. server/UploadServlet.java (the servlet for handling file upload) accepts a delay parameter that causes a thread to sleep. It can be abused to cause all of a server's threads to sleep, leading to denial of service. Affected products include: Gwtupload Project Gwtupload.

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.