CVE-2020-15655

CVE-2020-15655

EPSS 1.5%

A redirected HTTP request which is observed or modified through a web extension could bypass existing CORS checks, leading to potential disclosure of cross-origin information. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Affected products

Mozilla · Firefox Mozilla · Firefox ESR Mozilla · Thunderbird

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References

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html https://bugzilla.mozilla.org/show_bug.cgi?id=1645204 https://usn.ubuntu.com/4443-1/https://www.mozilla.org/security/advisories/mfsa2020-30/https://www.mozilla.org/security/advisories/mfsa2020-32/https://www.mozilla.org/security/advisories/mfsa2020-33/