LOWCVSS v3.1 3.7Vulnerability

CVE-2026-115303

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.

Properties

Severity
LOW
Nvd fetched at
2026-10-29T11:50:23.127633+00:00
Cvss severity
LOW
Cvss score
3.7
Retrieved at
2026-10-29T11:51:32+00:00
Score
3.7
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-115303
Cvss vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
First seen by Signal
2026-10-29T11:51:32+00:00
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Published at
2026-10-29T09:17:08.097
Last modified
2026-10-29T11:17:29.807

Related Entities (1)

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CVE-2026-115303 (CVSS v3.1 3.7) — Ninja Signal Threat Intelligence | Ninja Signal