Vulnerability CVE-2020-26956: Information
Description
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 < 78.5.
Severity: MEDIUM (6.1) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Fixed packages
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
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https://www.mozilla.org/security/advisories/mfsa2020-50/ |
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https://www.mozilla.org/security/advisories/mfsa2020-51/ |
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https://www.mozilla.org/security/advisories/mfsa2020-52/ |
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https://bugzilla.mozilla.org/show_bug.cgi?id=1666300 |
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