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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2020-10-22T20:32:46

Updated: 2024-08-04T13:22:30.785Z

Reserved: 2020-07-10T00:00:00

Link: CVE-2020-15680

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2020-10-22T21:15:13.263

Modified: 2020-10-30T13:18:05.340

Link: CVE-2020-15680

cve-icon Redhat

No data.