Detections
Analytics
CVE-2026-86813
medium
Description
The MetForm WordPress plugin before 4.1.9 does not properly neutralize newline characters in user-submitted values that are placed into notification email headers, allowing unauthenticated attackers to inject additional email headers, such as Bcc, into the emails the site sends when a submitted field value is configured to populate a header.
References
https://wpscan.com/vulnerability/afda2a26-b965-42cb-85a8-4a4d83ec026e/