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CVE-2026-115303

LOW 3.7 CVSS 3.1
Published
October 29, 2026
Last modified
October 29, 2026
NVD status
Deferred
Reported by
contact@wpscan.com
Weakness
CWE-93
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown Contact Form by Supsystic — Before 1.11.1

References

  • wpscan.com https://wpscan.com/vulnerability/c32e3ccd-84cb-42a4-a343-353a02ccb541/
  • nvd.nist.gov Official NVD record