CVE-2026-104446
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Oct 02, 2026
Vendor
unknown
Description
YesWiki before 4.6.7 contains an authentication bypass in the contact mail AJAX handler that allows unauthenticated attackers to send email through the wiki's SMTP server. Attackers can POST an XMLHttpRequest to the mail handler without field or type parameters, supplying arbitrary recipient, sender, subject and body for spam and phishing.