Vulnerability · Published Jul 9, 2020 · Assigned by mozilla

CVE-2020-12412

Medium 4.3

In plain English

A medium-severity security flaw in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).

Severity (CVSS NVD)4.3Medium

Exploit odds (30 days)0.8%top 44.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

By navigating a tab using the history API, an attacker could cause the address bar to display the incorrect domain (with the https:// scheme, a blocked port number such as '1', and without a lock icon) while controlling the page contents. This vulnerability affects Firefox < 70.

Affected products (as reported)

Vendor	Product	Versions
Mozilla	Firefox	unspecified – before 70

References

https://www.mozilla.org/security/advisories/mfsa2019-34/ x_refsource_MISC
https://bugzilla.mozilla.org/show_bug.cgi?id=1528587 x_refsource_MISC