CVE-2020-26951
Vulnerability from cvelistv5
Published
2020-12-09 00:19
Modified
2024-08-04 16:03
Severity ?
Summary
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.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1667113Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2020-50/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2020-51/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2020-52/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1667113Issue Tracking, Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2020-50/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2020-51/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2020-52/Vendor Advisory
Impacted products
Vendor Product Version
Mozilla Firefox Version: < 83
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   Mozilla Firefox ESR Version: < 78.5
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   Mozilla Thunderbird Version: < 78.5
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