CVE-2021-47958
Medium · 4.3CVSS
4.3
EPSS
0.2%
Published
May 15, 2026
CISA due date
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The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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