CVE-2021-47955

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/CouchCMS/CouchCMS
https://www.exploit-db.com/exploits/49636
https://www.vulncheck.com/advisories/couchcms-cross-site-scripting-via-svg-file-upload

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-16 16:16

Updated : 2026-06-17 04:18

NVD link : CVE-2021-47955

Mitre link : CVE-2021-47955

CVE.ORG link : CVE-2021-47955

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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