Vulnerability: Unauthorized Installation of Offensive Themes

CVE-2018-5168 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:P/A:N

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.

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