A same-origin policy bypass vulnerability has been found in the PDF viewer of Firefox < 60.0, allowing a malicious site to intercept messages meant for the viewer. This could allow the site to retrieve PDF files restricted to viewing by an authenticated user on a third-party website.
A same-origin policy bypass vulnerability has been found in the PDF viewer of Firefox < 60.0, allowing a malicious site to intercept messages meant for the viewer. This could allow the site to retrieve PDF files restricted to viewing by an authenticated user on a third-party website.
https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/#CVE-2018-5157 https://bugzilla.mozilla.org/show_bug.cgi?id=1449898