UBUNTU-CVE-2021-29975

Through a series of DOM manipulations, a message, over which the attacker had control of the text but not HTML or formatting, could be overlaid on top of another domain with the new domain correctly shown in the address bar resulting in possible user confusion. This vulnerability affects Firefox ...

UBUNTU-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 ...