CVE-2020-15655

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CVSS 3.1

6.5 medium

EPSS

2%p73

Published

Aug 10, 2020 (Aug 10, 2020)

Modified

Jun 17, 2026

Description

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.

Vendors: mozilla opensuse canonical
Products: firefox, firefox esr, thunderbird, leap, ubuntu linux
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.5%)

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