CVE-2021-47955— CouchCMS 2.2.1 Cross-Site Scripting via SVG File Upload
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I. Basic Information for CVE-2021-47955
Vulnerability Information
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Vulnerability Title
CouchCMS 2.2.1 Cross-Site Scripting via SVG File Upload
Source: NVD (National Vulnerability Database)
Vulnerability Description
CouchCMS 2.2.1 contains a cross-site scripting vulnerability that allows authenticated attackers to execute arbitrary JavaScript by uploading malicious SVG files through the file upload functionality. Attackers can upload SVG files containing embedded script tags to the browse.php endpoint, which are then executed in users' browsers when the files are accessed or previewed.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2021-47955
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same weakness: CWE-79
- CVE-2018-25331
Zenar Content Management System Cross-Site Scripting via aja - CVE-2021-47981
Quick.CMS 6.7 Cross-Site Scripting via CSRF to Sliders Form - CVE-2021-47975
WordPress Plugin WP Learn Manager 1.1.2 Stored XSS - CVE-2021-47957
WordPress Plugin Cookie Law Bar 1.2.1 Stored XSS via clb_bar - CVE-2021-47934
MyBB Timeline Plugin 1.0 Cross-Site Scripting and CSRF
V. Comments for CVE-2021-47955
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