It exists that selecting text caused Firefox to crash in some
circumstances. An attacker could potentially exploit this to cause a
denial of service. (CVE-2022-28287)
Mozilla Foundation Security Advisory 2022-13
Security Vulnerabilities fixed in Firefox 99
Announced
April 5, 2022
Impact
high
Products
Firefox
Fixed in
Firefox 99
...
SVG's <use> element could have been used to load unexpected content that could have executed script in certain circumstances While the specification seems to allow this, other browsers do not, and web developers relied on this property for script security so gecko's implementation was aligned with theirs ...