CVE-2017-7791

On pages containing an iframe, the "data:" protocol can be used to create a modal alert that will render over arbitrary domains following page navigation, spoofing of the origin of the modal alert from the iframe content. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

• CWE-20

• http://www.securityfocus.com/bid/100240Third 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=1365875Exploit, Issue Tracking, Patch, Vendor Advisory
• 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/100240Third 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=1365875Exploit, Issue Tracking, Patch, Vendor Advisory
• 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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• CVE-2017-7785A buffer overflow can occur when manipulating Accessible Ric…
• CVE-2017-7786A buffer overflow can occur when the image renderer attempts…
• CVE-2017-7787Same-origin policy protections can be bypassed on pages with…
• CVE-2017-7788When an "iframe" has a "sandbox" attribute and its content i…
• CVE-2017-7789If a server sends two Strict-Transport-Security (STS) header…
• CVE-2017-7790On Windows systems, if non-null-terminated strings are copie…
• CVE-2017-7792A buffer overflow will occur when viewing a certificate in t…
• CVE-2017-7793A use-after-free vulnerability can occur in the Fetch API wh…
• CVE-2017-7794On Linux systems, if the content process is compromised, the…
• CVE-2017-7796On Windows systems, the logger run by the Windows updater de…
• CVE-2017-7797Response header name interning does not have same-origin pro…
• CVE-2017-7798The Developer Tools feature suffers from a XUL injection vul…