CVE-2021-23996

MEDIUM

Firefox < 88.0 - Spoofing Attack via 3D CSS and JavaScript

Title source: llm
STIX 2.1

Description

By utilizing 3D CSS in conjunction with Javascript, content could have been rendered outside the webpage's viewport, resulting in a spoofing attack that could have been used for phishing or other attacks on a user. This vulnerability affects Firefox < 88.

References (2)

Core 2
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-16/
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1701834

Scores

CVSS v3 6.5
EPSS 0.0027
EPSS Percentile 50.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Details

Status published
Products (1)
mozilla/firefox < 88.0
Published Jun 24, 2021
Tracked Since Feb 18, 2026