CVE-2026-115303
Low · 3.7CVSS
3.7
EPSS
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Published
Oct 29, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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