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CVE Vulnerability Details :
CVE-2021-47955
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-16 May, 2026 | 15:26
Updated At-16 May, 2026 | 15:26
Rejected At-
▼CVE Numbering Authority (CNA)
CouchCMS 2.2.1 Cross-Site Scripting via SVG File Upload

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.

Affected Products
Vendor
CouchCMS
Product
CouchCMS
Versions
Affected
  • 2.2.1
Problem Types
TypeCWE IDDescription
CWECWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Type: CWE
CWE ID: CWE-79
Description: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Metrics
VersionBase scoreBase severityVector
4.05.1MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
3.15.4MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Version: 4.0
Base score: 5.1
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Version: 3.1
Base score: 5.4
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
xxcdd
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.exploit-db.com/exploits/49636
exploit
https://github.com/CouchCMS/CouchCMS
product
https://www.vulncheck.com/advisories/couchcms-cross-site-scripting-via-svg-file-upload
third-party-advisory
Hyperlink: https://www.exploit-db.com/exploits/49636
Resource:
exploit
Hyperlink: https://github.com/CouchCMS/CouchCMS
Resource:
product
Hyperlink: https://www.vulncheck.com/advisories/couchcms-cross-site-scripting-via-svg-file-upload
Resource:
third-party-advisory
Details not found