CVE-2020-15676

Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.

• CWE-79

• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.htmlBroken Link, Mailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.htmlBroken Link, Mailing List, Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1646140Issue Tracking, Permissions Required, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2020/10/msg00020.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202010-02Third Party Advisory
• https://www.debian.org/security/2020/dsa-4770Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-42/Release Notes, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-43/Release Notes, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-44/Release Notes, Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.htmlBroken Link, Mailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.htmlBroken Link, Mailing List, Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1646140Issue Tracking, Permissions Required, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2020/10/msg00020.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202010-02Third Party Advisory
• https://www.debian.org/security/2020/dsa-4770Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-42/Release Notes, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-43/Release Notes, Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-44/Release Notes, Vendor Advisory

Published

Oct 1, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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