CVEvulnerability

CVE-2026-86813

4.8 MEDIUM Published 2026-09-11 Modified 2026-09-11 Official page ↗
Status
Deferred
Published
2026-09-11
Last modified
2026-09-11
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-93

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.

Related

Weakness · CWE (1)

  • CWE-93 Improper Neutralization of CRLF Sequences weakness

References