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CVE Vulnerability Details :
CVE-2021-47958
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-15 May, 2026 | 18:36
Updated At-15 May, 2026 | 22:56
Rejected At-
▼CVE Numbering Authority (CNA)
CouchCMS 2.2.1 Server-Side Request Forgery via SVG upload

CouchCMS 2.2.1 contains a server-side request forgery vulnerability that allows authenticated attackers to make arbitrary HTTP requests by uploading malicious SVG files. Attackers can upload SVG files containing external entity references through the browse.php endpoint to access internal services and resources.

Affected Products
Vendor
CouchCMS
Product
CouchCMS
Versions
Affected
  • 2.2.1
Problem Types
TypeCWE IDDescription
CWECWE-918Server-Side Request Forgery (SSRF)
Type: CWE
CWE ID: CWE-918
Description: Server-Side Request Forgery (SSRF)
Metrics
VersionBase scoreBase severityVector
4.05.3MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
3.14.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Version: 4.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
Version: 3.1
Base score: 4.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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/49675
exploit
https://github.com/CouchCMS/CouchCMS
product
https://www.vulncheck.com/advisories/couchcms-server-side-request-forgery-via-svg-upload
third-party-advisory
Hyperlink: https://www.exploit-db.com/exploits/49675
Resource:
exploit
Hyperlink: https://github.com/CouchCMS/CouchCMS
Resource:
product
Hyperlink: https://www.vulncheck.com/advisories/couchcms-server-side-request-forgery-via-svg-upload
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found