In the Loofah gem for Ruby through v2.3.0 unsanitized JavaScript may occur in sanitized output when a crafted SVG element is republished.
github.com/flavorjones/loofah/issues/171
hackerone.com/reports/709009
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4WK2UG7ORKRQOJ6E4XJ2NVIHYJES6BYZ/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XMCWPLYPNIWYAY443IZZJ4IHBBLIHBP5/
security.netapp.com/advisory/ntap-20191122-0003/
usn.ubuntu.com/4498-1/
www.debian.org/security/2019/dsa-4554