CVE-2020-8280

PoC —

CVSS 3.1

5.4 medium

EPSS

<1%p48

Published

Jan 6, 2021 (Jan 6, 2021)

Modified

Jun 17, 2026

Description

A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting (XSS) attacks.

Vendors: nextcloud
Products: contacts
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 (0.6%)

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