CVE-2021-47958

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/CouchCMS/CouchCMS
https://www.exploit-db.com/exploits/49675
https://www.vulncheck.com/advisories/couchcms-server-side-request-forgery-via-svg-upload

Configurations

No configuration.

History

15 May 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-15 19:16

Updated : 2026-06-17 04:18

NVD link : CVE-2021-47958

Mitre link : CVE-2021-47958

CVE.ORG link : CVE-2021-47958

JSON object : View

Products Affected

No product.

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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