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CVE-2017-7791 On pages containing an iframe, the "data:" protocol can be used to create a modal alert that will render over…

Description

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.

Affected products and versions

Product Affected versions Fixed in
Thunderbird 52.3 earliest → < 52.3 52.3
Firefox ESR 52.3 earliest → < 52.3 52.3
Firefox 55 earliest → < 55 55

References

Timeline

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