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CVE-2020-26956
Published: Dec 9, 2020
Modified: Aug 4, 2024
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
Mozilla | Firefox | affected < 83 |
Mozilla | Firefox ESR | affected < 78.5 |
Mozilla | Thunderbird | affected < 78.5 |
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1666300
x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2020-50/
x_refsource_CONFIRM
https://www.mozilla.org/security/advisories/mfsa2020-52/
x_refsource_CONFIRM
https://www.mozilla.org/security/advisories/mfsa2020-51/
x_refsource_CONFIRM
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