CVE-2020-8189

PoC —

CVSS 3.1

5.4 medium

EPSS

1%p71

Published

Aug 21, 2020 (Aug 21, 2020)

Modified

Jun 17, 2026

Description

A cross-site scripting error in Nextcloud Desktop client 2.6.4 allowed to present any html (including local links) when responding with invalid data on the login attempt.

Vendors: nextcloud
Products: desktop
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 (1.4%)

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