Alpine/firefox-esr: medium 6.1
In some cases, removing HTML elements during sanitization would keep existing SVG event handlers and therefore lead to XSS. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird
Action: Upgrade firefox-esr to 78.5.0-r0 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 78.5.0-r0 | - |
Fixed versions
| 78.5.0-r0 |
Sources
- osv: ALPINE-CVE-2020-26956#Alpine:v3.14/firefox-esr
- https://security.alpinelinux.org/vuln/CVE-2020-26956
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