CVE-2020-26951

Katalog CVE

CVSS 6.1 · Medium EPSS 1,1%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada mozilla firefox, mozilla firefox esr +1 lainnya. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

Rincian

Terbit di NVD

9 Desember 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 63,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.mozilla.org/show_bug.cgi?id=1667113 issue tracking · permissions required · advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2020-50/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2020-51/ advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2020-52/ advisory vendor