CVE-2021-23984

Katalog CVE

CVSS 6.5 · Medium EPSS 1,1%

Kerentanan Authentication Bypass by Spoofing pada mozilla firefox, mozilla firefox esr +1 lainnya. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.

Rincian

Terbit di NVD

31 Maret 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-290: Authentication Bypass by Spoofing

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 65,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.mozilla.org/show_bug.cgi?id=1693664 issue tracking · advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-10/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-11/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-12/ advisory vendor