CVE-2026-86813
4.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Unknown | MetForm | 0 < 4.1.9 | affected |
Weaknesses
- CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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