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CVE-2021-23439— Cross-site Scripting (XSS)

Quick assessment

Affected
n/a file-upload-with-preview
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

file-upload-with-preview是一个简单的文件上传实用程序，显示上传图像的预览。用纯 JavaScript 编写。没有依赖性。适用于 Bootstrap 4 或不使用框架。 file-upload-with-preview 存在跨站脚本漏洞，该漏洞源于可以上传名称中包含恶意 JavaScript 代码的文件（需要诱使用户上传此类文件）。

CVSS 4.2 · Medium EPSS 0.89% · P58

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-23439

Vulnerability Information
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Vulnerability Title
Cross-site Scripting (XSS)
Source: CVE Program / CVE List V5
Vulnerability Description
This affects the package file-upload-with-preview before 4.2.0. A file containing malicious JavaScript code in the name can be uploaded (a user needs to be tricked into uploading such a file).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
file-upload-with-preview 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
file-upload-with-preview是一个简单的文件上传实用程序，显示上传图像的预览。用纯 JavaScript 编写。没有依赖性。适用于 Bootstrap 4 或不使用框架。 file-upload-with-preview 存在跨站脚本漏洞，该漏洞源于可以上传名称中包含恶意 JavaScript 代码的文件（需要诱使用户上传此类文件）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- file-upload-with-preview unspecified ~ 4.2.0 -

II. Public POCs for CVE-2021-23439

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III. Intelligence Information for CVE-2021-23439

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Patches & Fixes for CVE-2021-23439 (1)

Vendor Advisories for CVE-2021-23439 (1)

Other References for CVE-2021-23439 (1)

Same Patch Batch · n/a · 2021-09-05 · 4 CVEs total

CVE-2021-40523 Contiki 代码问题漏洞
CVE-2021-40524 Pure-FTPd 代码问题漏洞
CVE-2021-40516 WeeChat 缓冲区错误漏洞

IV. Related Vulnerabilities

Same vendor: n/a

V. Comments for CVE-2021-23439

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