[ CVE-2026-115303 · Published 29 Oct 2026 ]
Vulnerability in Unknown Contact Form by Supsystic
CVSS 3.7
EPSS <1%No fix listed yet
[ Description ]Official description
The Contact Form by Supsystic WordPress plugin before 1.11.1 does not strip CR/LF characters or re-validate submitted field values before concatenating them into outgoing email headers when a form is configured to map a submitted field into its Reply-To, From or Cc header, allowing unauthenticated users to inject arbitrary email headers such as additional Bcc or Cc recipients into the notification email.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.