CVE-2020-5810

PoC —

CVSS 3.1

5.4 medium

EPSS

62%p99

Published

Dec 30, 2020 (Dec 30, 2020)

Modified

Jun 17, 2026

Description

A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user authorized to upload media can upload a malicious .svg file which act as a stored XSS payload.

Vendors: umbraco
Products: umbraco cms
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (62.0%)

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