2020-10-22 23:15:00 2020-10-30 14:18:00

If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox < 82.

Vector

NETWORK

Complexity

LOW

Authentication

NONE

Confidentiality

PARTIAL

Integrity

NONE

Availability

NONE