What is the CVSS score of CVE-2023-6142?

CVE-2023-6142 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.4%.

Is there a public PoC exploit available for CVE-2023-6142?

Yes, a public proof-of-concept exploit is available for CVE-2023-6142. Prioritise patching immediately. EPSS: 0.4%.

Dev Blog CVE-2023-6142

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2023-11-21 help@fluidattacks.com

File Upload XSS Dev Blog

5.4

CVSS 3.1 · Vendor: fluidattacks

Severity by source

Vendor (fluidattacks) PRIMARY

5.4 MEDIUM

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

Primary rating from Vendor (fluidattacks) · only source for this CVE.

CVSS VectorVendor: fluidattacks

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Nov 21, 2023 - 00:15 cve.org

MEDIUM 5.4

DescriptionCVE.org

Dev blog v1.0 allows to exploit an XSS through an unrestricted file upload, together with a bad entropy of filenames. With this an attacker can upload a malicious HTML file, then guess the filename of the uploaded file and send it to a potential victim.

AnalysisAI

Dev blog v1.0 allows to exploit an XSS through an unrestricted file upload, together with a bad entropy of filenames. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Dev blog v1.0 allows to exploit an XSS through an unrestricted file upload, together with a bad entropy of filenames. With this an attacker can upload a malicious HTML file, then guess the filename of the uploaded file and send it to a potential victim. Affected products include: Armanidrisi Dev Blog.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.