CVE-2020-26956

CVE Details

Release Date:2020-12-09

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.

See more information about CVE-2020-26956 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 6.1 Base Metrics: AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Access Vector: Network Attack Complexity: Low
Privileges Required: None User Interaction: Required
Scope: Changed Confidentiality Impact: Low
Integrity Impact: Low Availability Impact: None

Errata information


PlatformErrataRelease Date
Oracle Linux version 6 (firefox)ELSA-2020-52572020-12-01
Oracle Linux version 6 (thunderbird)ELSA-2020-52382020-12-01
Oracle Linux version 7 (firefox)ELSA-2020-52392020-12-01
Oracle Linux version 7 (thunderbird)ELSA-2020-52352020-12-01
Oracle Linux version 8 (firefox)ELSA-2020-52372020-12-01
Oracle Linux version 8 (thunderbird)ELSA-2020-52362020-12-01



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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