CVE-2018-5166

WebExtensions can use request redirection and a "filterReponseData" filter to bypass host permission settings to redirect network traffic and access content from a host for which they do not have explicit user permission. This vulnerability affects Firefox < 60.

• CWE-269

• http://www.securityfocus.com/bid/104139Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1040896Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1437325Issue Tracking, Permissions Required, Vendor Advisory
• https://usn.ubuntu.com/3645-1/Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2018-11/Vendor Advisory
• http://www.securityfocus.com/bid/104139Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1040896Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1437325Issue Tracking, Permissions Required, Vendor Advisory
• https://usn.ubuntu.com/3645-1/Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2018-11/Vendor Advisory

Published

Jun 11, 2018

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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