The vulnerability in web browsers Firefox, Firefox ESR, and the email client Thunderbird, related to an error in accessing the privileged JSONView object, allows an attacker to gain access to confidential data and compromise its integrity.

The vulnerability in web browsers Firefox, Firefox ESR, and the email client Thunderbird is related to an error in accessing the privileged JSONView object, which was cloned into the content. Exploiting this vulnerability can allow a remote attacker to gain access to confidential data and...