A path validation issue in WhatsApp for iOS prior to v2.20.61 and WhatsApp Business for iOS prior to v2.20.61 could have allowed for directory traversal overwriting files when sending specially crafted docx, xlsx, and pptx files as attachments to messages.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1904
Reference (s):
- https://www.whatsapp.com/security/advisories/2020/
- URL: https://www.whatsapp.com/security/advisories/2020/