CVE-2020-6808

MEDIUM

Firefox < 74.0 - Authentication Bypass by Spoofing via JavaScript URL Evaluation

Title source: llm
STIX 2.1

Description

When a JavaScript URL (javascript:) is evaluated and the result is a string, this string is parsed to create an HTML document, which is then presented. Previously, this document's URL (as reported by the document.location property, for example) was the originating javascript: URL which could lead to spoofing attacks; it is now correctly the URL of the originating document. This vulnerability affects Firefox < 74.

References (2)

Core 2
Core References
Issue Tracking, Permissions Required x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1247968

Scores

CVSS v3 6.5
EPSS 0.0036
EPSS Percentile 58.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Details

CWE
CWE-290
Status published
Products (1)
mozilla/firefox < 74.0
Published Mar 25, 2020
Tracked Since Feb 18, 2026