CVE-2020-26951

描述

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.

如何修補 CVE-2020-26951

要修補 CVE-2020-26951,請將受影響套件升級到下列已修補版本。

• —升級至 78.5.0esr-1 或更新版本
• —升級至 1:78.5.0-1 或更新版本

CVE-2020-26951 正在被利用嗎?

低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 78.5.0esr-1
• from 0, < 1:78.5.0-1

CVSS 分數

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2020-26951