Related Vulnerabilities: CVE-2021-24001  

A security issue has been found in Firefox before version 88. A compromised content process could have performed session history manipulations it should not have been able to due to testing infrastructure that was not restricted to testing-only configurations.

Severity Medium

Remote Yes

Type Sandbox escape

Description

A security issue has been found in Firefox before version 88. A compromised content process could have performed session history manipulations it should not have been able to due to testing infrastructure that was not restricted to testing-only configurations.

AVG-1834 firefox 87.0-2 88.0-1 High Testing

https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/#CVE-2021-24001
https://bugzilla.mozilla.org/show_bug.cgi?id=1694727