VULNERABILITY INTELLIGENCE
CVE-2021-47955
CVSS score5.4 MEDIUM
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-05-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Description
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.
Weakness classification
- disclosure@vulncheck.com: CWE-79