CVE-2021-23998 Information

Description

Through complicated navigations with new windows an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10 Thunderbird < 78.10 and Firefox < 88.

CVSS Vector

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

Reference

https://www.mozilla.org/security/advisories/mfsa2021-15/ https://bugzilla.mozilla.org/show_bug.cgi?id=1667456 https://www.mozilla.org/security/advisories/mfsa2021-16/ https://www.mozilla.org/security/advisories/mfsa2021-14/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

6.5