Cross-site Scripting (XSS) Affecting firefox package, versions <0:78.5.0-1.0.1.el7_9
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Test your applications- Snyk ID SNYK-ORACLE7-FIREFOX-2573352
- published 10 Apr 2022
- disclosed 9 Dec 2020
Introduced: 9 Dec 2020
CVE-2020-26951 Open this link in a new tabHow to fix?
Upgrade Oracle:7 firefox to version 0:78.5.0-1.0.1.el7_9 or higher.
This issue was patched in ELSA-2020-5239.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
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
- https://linux.oracle.com/cve/CVE-2020-26951.html
- https://linux.oracle.com/errata/ELSA-2020-5235.html
- https://linux.oracle.com/errata/ELSA-2020-5236.html
- https://linux.oracle.com/errata/ELSA-2020-5237.html
- https://linux.oracle.com/errata/ELSA-2020-5238.html
- https://linux.oracle.com/errata/ELSA-2020-5239.html
- https://linux.oracle.com/errata/ELSA-2020-5257.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1667113
- https://www.mozilla.org/security/advisories/mfsa2020-50/
- https://www.mozilla.org/security/advisories/mfsa2020-51/
- https://www.mozilla.org/security/advisories/mfsa2020-52/