A spoofing vulnerability exists when an Office Web Apps server does not properly sanitize a specially crafted request, aka ‘Office Web Apps XSS Vulnerability’.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1442
Reference (s):
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1442
- URL: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1442

