The vulnerability in the implementation of the anti-virus and phishing protection functions for Mozilla Firefox, Firefox ESR, and the email client Thunderbird allows attackers to carry out phishing attacks.

The vulnerability in the implementation of malware protection functions for Mozilla Firefox, Firefox ESR, and the email client Thunderbird is related to errors in the process of checking uploaded files, which are encoded using “blob:“ and “data:“. Exploiting this vulnerability allows a malicious...