CVE-2021-23972

One phishing tactic on the web is to provide a link with HTTP Auth. For example 'https://www.phishingtarget.com@evil.com'. To mitigate this type of attack, Firefox will display a warning dialog; however, this warning dialog would not have been displayed if evil.com used a redirect that was cached by the browser. This vulnerability affects Firefox < 86.

Score

CVSS 3.1 8.8 High

Status

Modified - security@mozilla.org

Published

2021-02-26

Last modified

2024-08-03

Affected products

• Firefox (Mozilla)

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1683536
• https://security.gentoo.org/glsa/202104-10
• https://www.mozilla.org/security/advisories/mfsa2021-07/