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CVE-2020-26951
Published: Dec 9, 2020
Modified: Aug 4, 2024
PUBLISHED
Description
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.
| 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=1667113
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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