CVE-2017-7803

When a page's content security policy (CSP) header contains a "sandbox" directive, other directives are ignored. This results in the incorrect enforcement of CSP. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

• CWE-269

• http://www.securityfocus.com/bid/100234Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1039124Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2017:2456Third Party Advisory
• https://access.redhat.com/errata/RHSA-2017:2534Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1377426Exploit, Issue Tracking, Patch
• https://security.gentoo.org/glsa/201803-14Third Party Advisory
• https://www.debian.org/security/2017/dsa-3928Third Party Advisory
• https://www.debian.org/security/2017/dsa-3968Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-19/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-20/Vendor Advisory
• http://www.securityfocus.com/bid/100234Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1039124Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2017:2456Third Party Advisory
• https://access.redhat.com/errata/RHSA-2017:2534Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1377426Exploit, Issue Tracking, Patch
• https://security.gentoo.org/glsa/201803-14Third Party Advisory
• https://www.debian.org/security/2017/dsa-3928Third Party Advisory
• https://www.debian.org/security/2017/dsa-3968Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-19/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-20/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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