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Mozilla: X-Frame-Options bypass using object or embed tags

🗓️ 26 Aug 2020 10:11:44Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 8 Views

X-Frame-Options can be bypassed with object or embed tags, enabling framing; affects Thunderbird below 78 and Firefox below 78.0.2.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.1aarch64firefox0:78.2.0-3.el8_1firefox-0:78.2.0-3.el8_1.aarch64.rpm
Red Hat Enterprise Linux8.1i686firefox0:78.2.0-3.el8_1firefox-0:78.2.0-3.el8_1.i686.rpm
Red Hat Enterprise Linux8.1ppc64lefirefox0:78.2.0-3.el8_1firefox-0:78.2.0-3.el8_1.ppc64le.rpm
Red Hat Enterprise Linux8.1s390xfirefox0:78.2.0-3.el8_1firefox-0:78.2.0-3.el8_1.s390x.rpm
Red Hat Enterprise Linux8.1x86_64firefox0:78.2.0-3.el8_1firefox-0:78.2.0-3.el8_1.x86_64.rpm
Red Hat Enterprise Linux8.1aarch64firefox-debuginfo0:78.2.0-3.el8_1firefox-debuginfo-0:78.2.0-3.el8_1.aarch64.rpm
Red Hat Enterprise Linux8.1ppc64lefirefox-debuginfo0:78.2.0-3.el8_1firefox-debuginfo-0:78.2.0-3.el8_1.ppc64le.rpm
Red Hat Enterprise Linux8.1s390xfirefox-debuginfo0:78.2.0-3.el8_1firefox-debuginfo-0:78.2.0-3.el8_1.s390x.rpm
Red Hat Enterprise Linux8.1x86_64firefox-debuginfo0:78.2.0-3.el8_1firefox-debuginfo-0:78.2.0-3.el8_1.x86_64.rpm
Red Hat Enterprise Linux8.1aarch64firefox-debugsource0:78.2.0-3.el8_1firefox-debugsource-0:78.2.0-3.el8_1.aarch64.rpm
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13 Jan 2026 22:14Current
7.4High risk
Vulners AI Score7.4
CVSS 24.3
CVSS 3.16.5
EPSS0.01142
8