CVE-2021-23971 — Mozilla Firefox vulnerability
6 documents6 sources
Severity
6.5MEDIUMNVD
EPSS
0.4%
top 41.19%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedFeb 26
Latest updateMay 24
Description
When processing a redirect with a conflicting Referrer-Policy, Firefox would have adopted the redirect's Referrer-Policy. This would have potentially resulted in more information than intended by the original origin being provided to the destination of the redirect. This vulnerability affects Firefox < 86.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6
Affected Packages5 packages
🔴Vulnerability Details
2GHSA▶
GHSA-vr8w-9hf4-f445: When processing a redirect with a conflicting Referrer-Policy, Firefox would have adopted the redirect's Referrer-Policy↗2022-05-24
OSV▶
CVE-2021-23971: When processing a redirect with a conflicting Referrer-Policy, Firefox would have adopted the redirect's Referrer-Policy↗2021-02-26