Insecure Enforcement of https: Requirement in WebExtensions Allows Privileged Page Loading in Firefox < 58

Insecure Enforcement of https: Requirement in WebExtensions Allows Privileged Page Loading in Firefox < 58

CVE-2018-5113 · MEDIUM Severity

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

The "browser.identity.launchWebAuthFlow" function of WebExtensions is only allowed to load content over "https:" but this requirement was not properly enforced. This can potentially allow privileged pages to be loaded by the extension. This vulnerability affects Firefox < 58.

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