VDB
DEBIAN-CVE-2020-26951
DEBIAN-CVE-2020-26951
PUBLISHED
CVSS 6.099999904632568 MEDIUM
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.
Risk Scores
CVSS v3.1
6.099999904632568
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | firefox-esr | 0, 0, 0 |
| Debian:14 | thunderbird | 0, 0, 0 |
| Debian:13 | thunderbird | 0, 0, 0 |
| Debian:14 | firefox-esr | 0, 0, 0 |
| Debian:11 | firefox-esr | 0, 0, 0 |
| Debian:12 | thunderbird | 0, 0, 0 |
| Debian:11 | thunderbird | 0, 0, 0 |
| Debian:12 | firefox-esr | 0, 0, 0 |
Timeline
- Dec 9, 2020 CVE Published
- Apr 28, 2026 CVE Updated