CVE-2020-12415

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CVSS 3.1

6.5 medium

EPSS

1%p68

Published

Jul 9, 2020 (Jul 9, 2020)

Modified

Jun 17, 2026

Description

When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.

Vendors: mozilla opensuse
Products: firefox, leap
Weakness: CWE-276
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (1.3%)

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