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medium5.3

CVE-2018-5168

Sites can bypass security checks on permissions to install lightweight themes by manipulating the "baseURI" property of the theme element.

Impact

Sites can bypass security checks on permissions to install lightweight themes by manipulating the "baseURI" property of the theme element. This could allow a malicious site to install a theme without user interaction which could contain offensive or embarrassing images. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.

Affected products

VendorProductAffected versions
DebianDebian Linux
Versions 7.0, 8.0, 9.0
MozillaFirefox
before 52.8.0
before 60.0
MozillaThunderbird
before 52.8.0
MozillaThunderbird Esr
before 52.8.0
CanonicalUbuntu Linux
Versions 14.04, 16.04, 17.10, 18.04
RedhatEnterprise Linux Desktop
Versions 6.0, 7.0
RedhatEnterprise Linux Server
Versions 6.0, 7.0
RedhatEnterprise Linux Server Aus
Version 7.6
RedhatEnterprise Linux Server Eus
Versions 7.5, 7.6
RedhatEnterprise Linux Server Tus
Version 7.6
RedhatEnterprise Linux Workstation
Versions 6.0, 7.0

References