CVE-2020-8294 Information

Description

A missing link validation in Nextcloud Server before 20.0.2 19.0.5 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a ‘javascript:’ URL in markdown format.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Reference

https://hackerone.com/reports/1023787 https://nextcloud.com/security/advisory/?id=NC-SA-2021-002

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4